Independent Fundamental Baptist (IFB) cult. His family was IFB through and through, he attended a high school ran by one of their churches, he was well on his way to attending Bob Jones University, one of their flagship colleges, life seemed all good and well.
That is, until he gave up being in denial about being a gay teen, started a relationship with a Bob Jones student, and was outed by a friend to his pastor and family.
His hopes of going to Bob Jones went up in smoke, and he had to leave his family behind. He has made a nice life for himself though, he is now active in the former IFB community online, and has started over in life, ironically enough, settling down in Greenville, South Carolina, only 5 miles from Bob Jones University. He sounds like a great guy, I wish him all the best in life, and I'm glad that he has been able to get a fresh start in life.
If you want to read his story, check it out on the site bjunity.org, it's a support site for LGBT people who are currently in fundamentalism, or have already left. Read both part 1 and part 2 of his story, it's a great read.
Hat tip to Bruce Gerencser for this link.