I kinda accidentally fell into a gay relationship lol

Started as casual threesomes with my roommate and his gf. Was straight at first, with my roommate sharing his gf with me. But over time it got gradually more gay as the girl kept goading me and her bf into doing more and ore stuff with each other, and we both ended up liking it.

After a while we kinda ended up as a throuple, basically? Like, it wasn't exactly official, but I was sharing their bed with them and we were going on three-way dates and shit.

Then the girl exited the relationship (amicably... she got a job that required her to move cross country). Which just left me and my roommate together as kind of a de facto gay couple? We went to some effort to try to find another joint gf to share, but never had any luck, so we just kinda ended up being boyfriends for a couple years from sheer inertia...