The Bachelor spoilers reveal all the details fans want to learn about the 2019 season of The Bachelor -- from which bachelorettes receive roses in every episode to Colton Underwood's eventual Final 4 ladies, as well as who he picks as his winner and ends up with, and if he is currently engaged to her.

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[Bachelor Spoilers Warning: Please stop reading now if you'd like who Colton Underwood picks as his final winner and the stunning ending of the 2019 season to remain a surprise. This story contains episode-by-episode Bachelor spoilers of what will happen as ABC airs Season 23 of The Bachelor. It also contains Bachelor spoilers that reveal whether Colton is engaged and the current status of his relationship with his final winning bachelorette].

The Bachelor is several weeks into Season 23, and the fourth episode will air on Monday, January 28 at 8PM ET/PT on ABC.

Only 15 women are left in the running to receive Colton's final rose: Elyse Dehlbom, Courtney Curtis, Tracy Shapoff, Heather Martin, Tayshia Adams, Onyeka Ehie, Nicole Lopez-Alvar, Caelynn Miller-Keyes, Kirpa Sudick, Demi Burnett, Sydney Lotuaco, Hannah Godwin, Katie Morton, Hannah Brown, and Cassie Randolph.

RELATED LINK: 'THE BACHELOR' SEASON 23: MEET ALL OF COLTON'S BACHELORETTES! (PHOTO GALLERY)

ABC teases "one woman's personal story changes everything" and "a spectacular international trip awaits" the remaining ladies.

Colton and his group of bachelorettes will travel to Singapore, a booming multicultural metropolis that mixes big city luxury with interesting Chinese heritage.

Colton's week will be full of intense conversations and surprises over the course of two one-on-one dates and a group date.

The first date of the week will be for Tayshia, and Colton will take her bungee jumping to conquer their fears together.

Tayshia, however, has trouble enjoying the date because she's apprehensive to revealing a past failure in regards to her private life -- a failed marital relationship.

For the group date, Colton and 13 bachelorettes will explore the city's colorful street markets, but the girls' courage and spontaneity will be put to the test when confronted with an opportunity to eat exotic dishes such as bullfrogs and fish eyes.

The girls will also stop by a leech therapy center.

ABC teases Demi will work to "overshadow" her competition and then show off her more serious and mature side to Colton during the afterparty.
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RELATED LINK: 'THE BACHELOR' FRANCHISE COUPLES NOW: WHO IS STILL TOGETHER?? (PHOTOS)

But Demi can't get what she wants without stepping on others' toes, as she will interrupt Courtney's time with The Bachelor star.

Fireworks fly when "two women double down and drama heats up," according to the network.

Caelynn and Colton have a very intimate conversation

Colton will then embark on a solo date with the beautiful Caelynn, who will be treated to a posh designer and high-end shopping spree. ABC says Caelynn will try on stunning dresses by Lisa Von Tang.

But before their relationship can progress any further, a serious discussion needs to be had.

At dinner that night, the couple will talk about "intensely personal memories."

What Caelynn shares will be one of the most emotional, open and vulnerable conversations The Bachelor franchise has ever seen, according to Reality Steve spoiler blogger Steve Carbone.

Caelynn will open up about an extremely personal and traumatic story in which she had been a victim of sexual assault on her college campus when she was 22 years old.

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Caelynn has publicly discussed her past before because helping rape victims was actually her platform for the Miss USA pageant. Caelynn has made an effort to educate survivors given women may not know what to do after such encounters.

RELATED LINK: 'THE BACHELOR' COUPLES NOW: WHO DID 'THE BACHELOR' STARS AND THEIR BACHELORETTE PICKS ACTUALLY END UP MARRYING? (PHOTOS)

Because Caelynn opens up to Colton so freely, he will apparently share a big reveal from his own life as well.

At the cocktail party, the two long-time pageant rivals, Caelynn and Hannah B., strike a conciliatory note, but the feuding continues between Demi and Courtney, who face off in "one of biggest showdowns of the season," ABC teases of the next episode.

Courtney and Tracy go home at the Rose Ceremony

At the Rose Ceremony in Singapore, Colton will send Courtney and Tracy packing, according to Carbone.

Colton and his remaining 13 bachelorettes will then proceed to their next romantic destination.

In Episode 5, the group will head to Khao Lak, Thailand, where a one-on-one date is awaiting the patient Cassie.

The other one-on-one date will allegedly go to Heather, who will hopefully receive her first kiss ever.

And the group date will be comprised of eight bachelorettes -- Hannah B., Onyeka, Nicole, Elyse, Caelynn, Tayshia, Hannah G., Katie, Demi, Sydney, and Kirpa.

RELATED LINK: 'THE BACHELORETTE' COUPLES NOW: WHOM DID 'THE BACHELORETTE' STARS AND THEIR BACHELOR PICKS ULTIMATELY END UP WITH?! (PHOTOS)

Carbone says Hannah B. will earn the group-date rose but then Colton will find himself blindsided and rejected.

Elyse quits, and Colton sends Nicole and Onyeka home

An early frontrunner this season, Elyse, will allegedly decide to quit during the fifth episode because she believes a spark is missing between The Bachelor star and herself.

Elyse's unexpected exit will reportedly leave Colton with two more eliminations, and Carbone says Colton will oust Nicole and Onyeka.

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Episode 6 of The Bachelor will reportedly take place in Nha Trang, Vietnam, where Colton enjoys two one-on-one dates with Hannah G. and Kirpa, who both end up receiving a rose.

RELATED LINK: '90 DAY FIANCE' COUPLES NOW: WHO'S STILL TOGETHER? WHO HAS SPLIT?! (PHOTOS)

The rest of the bachelorettes will reportedly go on a jungle-inspired group date, and then Demi will be eliminated after visiting Colton's hotel room.

Carbone says Colton did not reciprocate Demi's strong feelings, and so he decides to let her go ahead of the Rose Ceremony.

Sydney also rejects Colton and quits the show

But again, Colton finds himself at the mercy of his bachelorettes and their feelings for him when Sydney decides to quit the show because she's also missing a solid connection with Colton.

And drama will unfold when two bachelorettes are reportedly thrown under a bus by Katie.

"Katie tells [Colton] that Caelynn and Cassie were talking about being the Bachelorette, they weren't genuine, and they weren't here for him and he wasn't happy. But he sends Katie home at the rose ceremony," Carbone reported.

That will leave on seven girls in the running to become Colton's fiancee in Episode 7.

RELATED LINK: 'MARRIED AT FIRST SIGHT' COUPLES NOW: WHO'S STILL TOGETHER? WHO BROKE UP? (PHOTOS)

Tayshia, Caelynn and Hannah B. will each reportedly receive a one-on-one date with Colton during this episode.

Colton and Tayshia will be shown walking around Union Station with Colton's dog Sniper and enjoying some drinks and ice cream.

Heather quits too, and Colton sends Hannah B. and Kirpa home

Unfortunately for Hannah B., however, she gets eliminated during her one-on-one date, according to Carbone, but the other two ladies receive roses.

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There will also reportedly be a four-on-one date during which Heather chooses to eliminate herself because she's not ready to introduce Colton to her family. (Yet another bachelorette who quits!)

Hannah G. allegedly receives the rose on this date, leaving a rose up for grabs between Kirpa and Cassie ahead of hometown dates.

At this point, Kirpa reportedly gets eliminated, but Carbone is unsure whether she goes home in the traditional sense at a Rose Ceremony.

RELATED LINK: 'MARRIAGE BOOT CAMP' COUPLES NOW: WHO IS STILL TOGETHER? WHO HAS SPLIT? WHERE ARE THEY NOW? (PHOTOS)

That will determine Colton's Final 4 bachelorettes. According to Carbone, they are Hannah G., Cassie, Tayshia, and Caelynn.

Colton goes on his Final 4 hometown dates

Hannah G's date was reportedly taped in Birmingham, AL, on October 27, before Caelynn's date was taped in Fredericksburg, VA.

Caelynn and Colton were spotted and photographed enjoying a horse-drawn carriage on Princess Anne Street during her hometown date.

And then Tayshia's date was filmed in Orange County, CA, on October 31, followed by Cassie's date in Huntington Beach, CA, on November 2, Carbone says.

Colton dumps Caelynn

Although she appears to be a frontrunner right now in the season, Colton allegedly eliminated Caelynn in fourth place during a Rose Ceremony held in Los Angeles, CA.

Carbone claims Caelynn will have a good shot to become the next The Bachelorette star, as her heartwrenching story will resonate with viewers. It's also clear she's very likeable and sincere, except for Hannah B.'s allegations she is fake.

Colton and his Final 3 bachelorettes then reportedly traveled to Sagres, Portugal, for a week of overnight Fantasy Suite dates, which will air in Episode 9.

As fans may have anticipated, the most dramatic part of the season will take place during the Fantasy Suites -- but not because of Colton's virginity.

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During filming, Colton allegedly took advantage of only two Fantasy Suite dates, instead of the usual three, and one woman stole his heart prematurely.

Colton first enjoyed an overnight date with Tayshia that taped on November 6 at the famous lighthouse on Cabo de Sao Vicente, Carbone reported.

And then the former football player's second Fantasy Suite date was with Cassie, and the romantic evening taped on November 8.

Colton decides to pick Cassie

Colton reportedly determined at some point during his Fantasy Suite date with Cassie that she's the one!

Carbone says Colton made up his mind about being in love with only Cassie before he even had a chance to enjoy an overnight date with the gorgeous Hannah G.

This is why Colton's season is so different and shocking compared to seasons past, because most leading men and women of the franchise end up being torn between their Final 2 options. Take for instance Ben Higgins and Arie Luyendyk Jr.!

Cassie rejects Colton and quits

Although Colton determined Cassie is the woman he wants to be with forever, Carbone revealed in his podcast in December 2018 that Cassie quit the show before Colton could even give her the final rose!

Cassie reportedly realized she's not ready to settle down or accept a Neil Lane diamond ring from Colton in the end.

"Cassie told him, 'I don't want to be engaged,'" Carbone disclosed in his podcast.

"She essentially pulled a [Peter Kraus]. Like, 'I'm 23, like, I don't want to be engaged.' And I'm being told -- and I can't 100 percent confirm this -- but I'm being told this is where the fence jump happened. Because on that overnight date, Cassie left the show."

Cassie's decision to quit was allegedly the moment when Colton jumped a fence and yelled he was "done" with the show, as shown in a trailer for the season that ABC previously released.

When Colton jumped the fence, he left Chris Harrison shouting after him from several yards away, in a total panic.

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Colton therefore reportedly decided to dump both Hannah G. and Tayshia in the hope of making something work with Cassie in the real world. (He dumped Hannah before entering their Fantasy Suite).

There will therefore be no Final 3 Rose Ceremony or Final Rose Ceremony abroad shown on television this season.

Cassie gives Colton another chance

According to Carbone, Cassie actually returned home to California after quitting the show -- and Colton then also returned to America and essentially chased her down.

The Bachelor's production crew reportedly filmed Colton tracking Cassie down in the Los Angeles area and telling her that he'd still like to be with her regardless of whether they get engaged.

Carbone is unsure how many days elapsed between Cassie's exit in Portugal and when cameras taped her in California, but he assumes production gathered in Huntington Beach, where Cassie lives with her parents.

"They filmed something in the States, where Colton comes to Cassie and basically says, 'We don't need to be engaged, but I want to be with you.' And that's where we are for right now," Carbone said.

Carbone had been hearing Cassie would probably be Colton's winner since mid-October. In fact, the spoiler blogger said from the start he would be "stunned" if Cassie didn't receive his final rose.

So are Colton and Cassie still together? What is the latest on their slow-moving romance?

Colton's desperate plea to Cassie reportedly resulted in the couple choosing to continue dating each other but taking an engagement off the table since Cassie is only 23 years old.

Carbone says Colton and Cassie are still together and will share a relationship update with fans in a couple of months when The Bachelor: After the Final Rose airs on ABC.

"My guess is Cassie is very young, and her feeling of, back in November, telling Colton, 'I'm not ready to be engaged,' [is] probably still going to stand in March. But that's just a guess. We'll see what happens," Carbone predicted.

Carbone concluded his podcast last month by apologizing for previously incorrectly reporting Colton and Cassie were engaged.

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"I apologize for reporting that they are engaged. They are not," Carbone said, referring to his initial set of spoilers that he had to correct.

"But he definitely chose Cassie, and they are definitely seeing each other, and have been seeing each other since the end of filming."

If the spoilers turn out to be accurate, Bachelor Nation will miss out on a lot of typical footage from The Bachelor season -- including the Final 2 women meeting with Colton's family and the Final 2 women's last one-on-one dates with Colton in Spain.

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