I'm second guessing myself on a close relationship I have, am I gay or bi?

Okay…so basically I don’t know my sexuality so well like I said in the previous question…Honestly I don’t….But I met someone, just don’t know what to do. I’m friends with him now. But later on he said that he has feelings for me. And I’m totally fine with it… We always hug and snuggle together. I mean I’m not gay I wasn’t sexually attracted to him….But I mean we always did that. And the thing is, is that he has a boyfriend and stuff. And I met him too, real nice guy and he’s cool with me. Just that now that I think about it I’m sorta jealous…. But I don’t want to mess up the relationship they have. And the thing is, I don’t know who I am!
I’m just so confused I don’t know what to do….