ask her if she still thinks of her ex or has residual feelings.

i say fuck it. shes leading you on and playing bro, trust me, you don't want to feel the result of being played with. if she hesitated, she doesnt feel as strongly as you do. she probably lied about feeling the same way. run bro, she just wants you as arm candy

think about it, if she really cared about you and has feelings for you, why hesitate? and still act the way she does? she likes having you around to lean on. confront her about this shit if you still have feelings but my past experience is telling me you should move on. shes fucking objectifying you, you're her current favourite toy

Well not going to lie I'm a pretty attractive guy, in which I actually had to ditch two other girls who liked me at that time at a party just to be with her, and when I asked her about if she wanted the relationship she was like why me? Or how am I going to compete with them? (Because I have some cheerleaders interested in dating me in college), but she said that I was good enough for her but she felt that she was in love and had her heart broken, but I'm still unsure like words can be just one thing

If you're not gonna join a frat, join a club. College gets really lonely and they are easy ways to make friends. You don't want to just sit in your dorm room all day and get depressed.