90 Day Fiance couple Steven Frend and Olga Koshimbetova have broken up and called it quits on their romantic relationship.

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Steven and Olga, who starred on Season 6 of 90 Day Fiance in 2018 and got married in August 2019, recently unfriended each other on Instagram, and Steven announced their relationship has ended in a Saturday social-media post.

RELATED LINK: '90 DAY FIANCE' COUPLES NOW: WHO IS STILL TOGETHER? WHO HAS SPLIT? WHERE ARE THEY KNOW? (PHOTOS)

"People keep asking if Olga and I are [together] but the answer is, we went into this super blindly," Steven, 22, wrote in an Instagram Stories posting.

"There's alot the show left out that'll have people confused. But we have learned a lot about each other over this whole journey but we're better at being co-parents to our boy."

Steven and Olga share a two-year-old son, Richie Aleksandr "Alex" Frend, who was born on April 19, 2018.

"We're both civil and cause no drama because our son's mental health is [our top] priority," Steven continued. "(P.S. Don't assume you know the full story from this one little post)."

Steven later deleted all photos of Olga from his Instagram account although Olga's profile still features pictures of her ex.

Olga, 22, has yet to comment on her split from Steven, but she alluded to there being trouble in paradise when she reportedly shared a quote on her Instagram Stories on Sunday.

"So be kind, because life is hard enough and everyone is fighting their own invisible battle," Olga wrote, according to Us Weekly.

Last month, however, Olga explained why she had traveled to California with Alex but without Steven, a trip which sparked breakup rumors.

RELATED LINK: 'MARRIED AT FIRST SIGHT' COUPLES NOW: WHO IS STILL TOGETHER? WHO BROKE UP? WHERE ARE THEY NOW? (PHOTOS)

"Where is Steven? Where did you go? Why did you go alone ? And many many others questions I received when I told that I'm going to California. For those who didn't know, I have a family here," Olga wrote September 22 on Instagram.

"My uncle came here 23 years ago, alone, without perfect English, without friends but after all these years they have a big family which included friends and other relatives. As you remembered, I planned to visit them in August but then wildfires happened and I canceled my trip."

Olga continued, "But after a few weeks my uncle invited me again and I was so excited because I couldn't [spend] more days sitting at home. After a car crash we literally stuck at home and unfortunately there are no Uber with a car seat and no bus for us."

Olga then explained "another reason" for her trip to a different state sans her husband.

"Why it was a good idea to go alone without Steven, because we finally started to miss each other," Olga wrote along with two crying-laughing emoticons.

"Spending 24/7 with each other can be really tough. Did [you] ever go somewhere without your partner? Or do you always together?"

It appears Steven and Olga have been having problems for a while now.

Back in November 2019, Olga posted two photos of herself with Alex and noticeably wasn't wearing an engagement or wedding ring on her left hand.

RELATED LINK: '90 DAY FIANCE: BEFORE THE 90 DAYS' COUPLES NOW: WHO IS STILL TOGETHER? WHO HAS SPLIT? WHERE ARE THEY NOW? (PHOTOS)

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One concerned follower commented on the photo, "Why are you without a ring?"

And Olga replied, "Too complicated."

Steven met Olga while she was visiting America for the summer in 2017, and after only a month-and-a-half of dating, the couple discovered Olga was pregnant. Steven said learning he was going to be a father was "a holy sh-t moment" for him.

Olga returned to Russia about a week after learning she was pregnant, but Steven proposed they get married and have her return to America on a K-1 visa.

Steven told Olga he had applied for her K-1 visa shortly after her return to Russia but the visa application had been delayed, leaving her stuck overseas for the birth of their son.

However, 90 Day Fiance viewers witnessed Steven eventually admit to Olga that he had been lying and didn't actually apply for the visa until after traveling to Russia to be with Olga for Alex's birth.

Once Steven confessed the truth to Olga on Season 6 of 90 Day Fiance, she appeared to take the news surprisingly well and quickly forgive him.

Steven left Maryland and returned to Russia to visit the love of his life in January 2019, and then in April of that year, Steven announced Olga would be arriving in the United States shortly.

RELATED LINK: '90 DAY FIANCE: HAPPILY EVER AFTER?' COUPLES NOW: WHO IS STILL TOGETHER? WHO HAS SPLIT? WHERE ARE THEY NOW? (PHOTOS)

"I'm in the U.S. now, Olga will be here in a week or 2. She already has her Visa," Steven shared in an Instagram Story at the time, referencing how Olga's K-1 visa application had been approved.

"Now we only need the plane tickets. I had to leave Russia without Olga early or I was going to lose my job."

Olga hinted she was in the United States on Instagram in June 2019 when she complained about not being used to the humidity, and Steven subsequently confirmed she had arrived on June 24 by posting a family photo at the Annapolis City Dock in Maryland.

Olga's visa gave her 90 days to wed Steven or else she would have to return to Russia.

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In early July 2019, Olga revealed she and Steven had spent time in Maryland before traveling to New York for a "spontaneous" trip.

Olga and Steven apparently enjoyed sightseeing before settling into their new life together and getting married.

"30.08.2019 we are officially husband and wife," Olga captioned an Instagram selfie in late August of last year, showing the couple posing with their son Alex and a marriage certificate.

A courthouse was visible in the photo's background and the certificate appeared to be a State of Maryland document, indicating the young couple married in a courthouse ceremony in Steven's home state.

Olga said in Fall 2019 it would be "awesome" if she and her husband got to star on another season of a 90 Day Fiance spinoff on TLC, but clearly a lot has changed since then.

RELATED LINK: '90 DAY FIANCE' COUPLES NOW: WHO IS STILL TOGETHER? WHO HAS SPLIT? WHERE ARE THEY KNOW? (PHOTOS)

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