Search Results: how to act around a crush

I finished senior year last year and I can’t seem to forget about this guy that was in my class. I had a huge crush on him but he was obnoxious and had a girlfriend so I made it my mission to stay away from him. Nonetheless he would act weird around me from asking and always initiating sexual conversations with me, to laughing at everything I would say (when I wasn’t even trying to be funny), to disrupting the class by trying to steal my phone, to exposing my crush I had on his friend (it was a lowkey cover up) , to him making out with his girlfriend intentionally in front of me, to him randomly sprinting in class and jumping over my chair also on this one costume day at school pushed to take pictures with me and wrapped his arm around my neck and lastly when I confronted him if he had a crush on me , he hysterically and loudly laughed in my face. He had a girlfriend all this time by the way. He would do anything to get my attention , I would curse him out for his disrespectful behavior and also ignore him a lot but that didn’t work , obviously.

I just can’t stop thinking about all the dumb stuff he did , I want clarity.

I used to have a stranger crush on a guy from college and the feeling was Mutual (according to his friends) but we never talked and he seemed very reserved around me and never made any moves.

Now years later he met another girl in college he works with in a group and he was very flirty and confident around her from the very beginning, he acts very touchy feely with her, leans in, acts cutesy and started dressing better.

Why did he never try to impress me or talk to me like that If he was crushing on me too? Does he find her more attractive? Or is it because he has established rapport with her but not with me? Or because she is more outgoing and talkative?