Shortly after his relationship from The Bachelor ended, he faced allegations of stalking that were ultimately dropped. In 2021, Underwood came out as gay, and his coming out journey way documented in the Netflix series Coming Out Colton. He is now married to husband Jordan C. Brown.

Looking back on that time in his life now, Underwood said: “A lot of people forget when these people go on a show like The Bachelor, they’re in their mid-20s. For me, especially, I was coming out of football. I didn’t have a lot of emotional maturity, and I’m all of a sudden navigating a life in front of cameras…obviously I was still working through a lot of shame and figuring my sexuality out.”