About the girl who hooked up with someone else: I laid all that out with my girlfriend before we actually started dating, like when we were just talking I put it out there straight up and she ended up agreeing with what I had to say. Basically I was just like, I don't care if you talk to other people but let me know if that's what you want to do, I wasn't looking for a relationship or expecting anything at all. Even if we aren't gonna date I don't want to talk to someone who is hooking up with other people simultaneously. I don't need hella attention at all but it's just more of a courtesy thing in my opinion, personally I find it pretty gross that some girls are down to suck someone else's dick then go hang with another guy that they may be kissing or "dating" or whatever.
I guess I never really thought about it in these terms but I think people should choose their lane or what you wanna do, and they have a tendency to get them mixed up. If you want to be a hoe just live up to that and be out there with what you're doing, I've heard before that communication is key in a relationship but I think it also applies in any kind of intimacy, however small.
I remember getting feelings for girls before where I think back now just like, man how did that even happen? Like you hook up with her over a week period and have some expectation that you shouldn't have about someone and end up getting your feelings hurt. I've actually seen some of them since these things happened and it wasn't awkward or anything, but just after talking to them saying what's up I find myself asking myself why the fuck I even wanted to date them. In my opinion I think I had some expectation of them or that I was looking for something, which I think is the opposite of what you should do in relationships. More rambling than a confession haha