so my dude has this best friend who is a female, but identifies as non-binary, so out of respect for them, ‘she’ will be referred to as ‘they/them’..

he’s been friends with them since before high school and they dated, begging young horny high schoolers, of course they had sex. then they broke up and stayed friends while they (she) dated his best friend (another guy).

quick side story: my dude told me this story about one time he and his best friend had a girl ask them for a three-some. he didn’t tell me who the girl was, but then one day he tells me it was them (her).. so of course I had feelings about that 1. because he didn’t tell me to begin with; and 2. because it was with them (her)

ANWAYS

they’re still friends, in fact they are best friends for over 10 years now. he continued to have sex with them (her) almost up until we started dating. and they’ve almost always had sex when they would get together.

this is his good friend, according to him, and I’ve never met them because they’ve lived in Another state the majority of our relationship. But now they’re (she’s) moving back home.. where we live.

I feel some type of way.. for a multitude of reasons. I obviously need to get past the fact they pretty much grew up together, in more ways than one. Most people don’t grow up with someone else sexually (at least not people I know) and that bugs the shit out of me because she’s more than just a friend. I’ve expressed my feelings about this to him, so he’s fully aware that I’m not sure about them (her). And I would never ask him to not be friends with them because that’s not how I am, but still 🙄 ugh. I know I need to meet them in person and try to get to know them, but mmm😑

I’m not jealous and I have no reason not to trust him., i guess it’s just because I don’t know them or their intentions, yanno?