Tristan, who starred on Season 7 of Married at First Sight, just declared Rachel his "Queen" Tuesday on Facebook, shortly after changing his status to "in a relationship" with the former Miss World America Texas beauty pageant winner earlier this month.
Tristan is hugging a smiling Rachel -- who is a culinary coach and MBA grad student, according to her Instagram bio -- in a photo posted alongside the May 14 "Queen" Facebook posting.
The pair are surrounded by cardboard moving boxes in a nearly empty apartment kitchen, with a bottle of wine and what appears to be a bouquet of flowers also visible on the countertop in the background.
Tristan, who has moved back to Houston, TX since his Married at First Sight season filmed, originally debuted Rachel as the new woman in his life on social media on Valentine's Day 2019.
"Life is constantly in motion. A song, an event, a moment can change the course of your life. Mine changed the day I met you," Tristan captioned a photo of the pair at the time.
"I'm truly grateful to have my angel in human form. Happy Valentines Day. You are the one I adore Mi Amor."
On March 31, Tristan bragged on Facebook about how supportive Rachel is and how she always has his back.
It appears Rachel slammed Tristan's haters from Married at First Sight, writing, "Don't come for me OR my man if alllll you know about me is the color of my skin from a social media page, and him from a TELEVISION SHOW."
She continued, "Spend a day or maybe a week with [Tristan] when there aren't cameras around and honestly... you'd be AWED at the man I get to call THE LOVE OF MY LIFE and my best friend. I get to wake up and fall asleep to his smiling face everyday and I could not feel more blessed."
And then Tristan and Rachel apparently celebrated Easter together this year in April in Lake Jackson, TX.
Tristan married Mia Bally on Married at First Sight's seventh season -- which was based in Dallas, TX, and aired in 2018 -- and the couple faced numerous obstacles during their time together.
Mia ultimately filed for divorce from Tristan on September 4, 2018 in Dallas, TX, citing insupportability as the grounds for the divorce.
In October, Mia appeared to accuse Tristan of demoralizing her during the course of their relationship on social media.
Although she did not name Tristan directly, she led her followers to believe Tristan mentally abused her and is a "narcissist."
Tristan and Mia's divorce was finalized in November 2018, but according to the divorce decree, the pair separated on May 5, 2018.
Given the couple's Married at First Sight wedding only occurred on March 25 of last year, the May 5 date would mean Mia and Tristan separated nearly two weeks before the show's eight-week experiment ended.
Mia and Tristan, however, presented themselves as wanting to stay together and make their marriage work on Season 7's "Decision Day," which took place at the conclusion of the eight-week period.
On the season's subsequent reunion show in which they had announced they were divorcing, Mia and Tristan insisted that while they had engaged in several fights during the filming period, they only split for good after "Decision Day" occurred.
An arrest warrant had been issued back in February 2018 by Mia's alleged ex-boyfriend, Jared Evans, who claimed she had stalked him on multiple occasions in the 13 months that followed their December 2016 breakup and also made an unauthorized purchase of an Apple iPhone on his credit card one year after their split.
Mia initially told Tristan the situation was a matter of identity theft and she had no relationship with her accuser, but she slowly came clean to her concerned husband off-camera, resulting in a lack of trust in their marriage.
In a pair of Instagram postings Mia made in October 2018, she claimed she was innocent and Evans' police report was false.
According to Mia's postings, she was the victim of a false police report in regards to her ex-boyfriend's stalking accusations, and he actually called and texted her thousands of times following their alleged break-up.