He was an ex, and we remained friends after the relationship ended. At one point, he decided he was straight and wanted to marry and have a family. Whatever, you do you. Instead of putting the effort in and finding someone compatible and then building a relationship, he settled for some money-hungry psycho with two children. They married within three months, and whenever he was in town, I would see him on Grindr. I confronted him about it, and he said he was horny and looking for inspiration for some solo relief. Bullshit. I reminded him that I had put miles on his ass when we were together, and he was after me like a dog in heat for years after. He might be telling people that he's straight, but not a single person believes him. Whatever his reason for it didn't matter. He made a commitment to her, and a very religious one at that. In case he forgot, I officiated and signed the marriage license.
One of her sons found him on Grindr. I hate to say it, but his niece and I ate popcorn while watching the fireworks.