Big Brother's Season 18 houseguests Nicole Franzel and Victor Arroyo are going to get married!

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Nicole, the winner of Season 18, and Victor, best remembered for being a competition beast, confirmed in September 2017 on social media they're dating after just establishing a friendship inside the Big Brother house in Summer 2016.

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During Sunday night's episode of Big Brother's 20th season, Nicole entered the house thinking she was going to host "a luxury competition," but instead, her boyfriend Victor had set up a sweet marriage proposal for her.

Victor appeared on the big television screen in the living room -- while Season 20's houseguests were all piled into a different room together -- and a montage began to play, featuring footage of Victor and Nicole's time together in the Big Brother house.

Nicole teared up immediately, as seeing Victor's face clearly lit her up inside.

Victor told his girlfriend, "Nic, we met in the Big Brother house over two years ago, and right away, I thought you were the most beautiful girl I've ever seen and I fell in love with your personality. We formed a friendship in the Big Brother house, but our friendship really blossomed outside in the real world," said Victor, a Louisiana native.

"We had long talks on the phone, text messages, FaceTime calls -- we had a solid friendship. I knew when we had that first kiss in New York that I was in love with you. Nicole, I will be very honest with you. The last place I ever thought I'd be living is Ubly, Michigan, and now I live in Ubly, Michigan."

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After letting out a laugh, Victor continued, "Wherever you are is where I belong, and now I can't imagine being anywhere else."

Nicole broke out into a series of sobs and sighs while listening to Victor's heartfelt speech and profession of love. She was clearly swept off her feet by Victor's romantic gesture.

"Nicole, you are the most beautiful, most kind, most giving and generous person that I know," Victor told the blonde beauty.

"You are my soul mate, you are my lover, you are my best friend, and you're my blank. You always fill in that blank. Even though I didn't win the money, I walked out of Big Brother with the biggest prize of all, and that's you."

"Our story began in the Big Brother house, and I don't know where the next chapter is going to take us, but I just know it's going to be with you," he said.

Victor then surprised Nicole in person with his long locks chopped off, a clean-shaven face, and a custom-made diamond engagement ring in his hand.

"I love you. You are my best friend. I didn't want to cry, but you are my everything and you are my soul mate, and I love you so much," Victor said before kneeling down. "Will you marry me?"

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"Yes, of course! I love you!" gushed Nicole, who was also shocked by Victor's drastically-different new look.

The lovebirds were then congratulated by former Big Brother players Paul Abrahamian, Derrick Levasseur, Josh Martinez, Britney Haynes, and Daniele Donato, who entered the house with flowers.

After celebrating together, the star-struck Season 20 houseguests were welcomed into the kitchen, and everyone enjoyed a cake in honor of Nicole and Victor's engagement.

"After it all, I got the money and I got the guy. Life is great!" Nicole told the cameras.

Nicole and Victor seemingly had no romantic interest in each other while competing on Big Brother's eighteenth season.

Not only did viewers fail to see sparks between the pair, but Nicole was also dating Corey Brooks -- and they had a long-lasting showmance on the series. Nicole and Corey, however, split shortly after the Season 18 finale aired.

The blonde beauty and Victor apparently hit it off -- as more than friends -- in Summer 2017.

"Everything came together for the premiere of Big Brother 19, where we were in New York and we just clicked. From then on, it was, I guess it was a love story," Victor explained to Entertainment Tonight one year ago.

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Nicole also previously dated Hayden Voss, whom she met when they both competed on Big Brother's sixteenth season.