Honestly, it's not that special. I've had all kinds of encounters with straight guys. Who literally have all turned out to be straight and actively enter relationship with women. One dude I sucked, some guys I circle jerked with, another one we came close to anal...and it's a joke between us now...he has a girlfriend and everything. One of my friends now I'm very touchy-feely with and we act cute together. He has a gf and they have a dog (so they're basically married).
People need to let all these presumptions and labels GO! Just do what feels right between the two of you. If it's sex fine, if it's cuddling fine, if it's none of that fine. Who cares if you identify as straight, gay, bicurious? Your body isn't a slave to social constructs. It reacts how it wants to. It
feels what it wants to. So might as well vibe with it and stop trying to resist.