There's this girl... (I know I know bad start that's stupid it's best just to forget about her and move on but I just don't understand the situation and it confuses me

). Anyway there's this girl who I got to know about two months ago but don't see that often. Although the last few weeks I see her more often because we're in the same college. At first when I met her I didn't try to game her but I guess I naturally still kind of did and she gave me all those signs of interest and compliance and even got a little jealous sometimes. She still gave me those signs until yesterday. I saw her and went to talk to her again and at first she again seemed interested but for some reason I unfortunately overdid talking about me and other girls (she even said I have a big ego at some point

) and I also made sexual remarks about her (which I always did before too just not that much) without realising it right away. So at some point she just told me to leave her because she needs to study and it didn't sound really nice. It really caught me off guard because she was acting completely different than before. I left her and immediately opened two other girls I saw (that's something I always do when I'm getting angry because of some girl

).
Now I have a few theories what could have happened:
1.) She never liked me all that much and is just flirty and energetic in general. The fact that she has lots of men around her most of the time because of the subject she's studying could also be an indicator here but she used to give me more attention and compliance than the others before so I still can't really tell.
2.) She went into auto-rejection because I made myself seem to high value and uninterested in her by talking about other girls or because she thinks all I see her as is a piece of meat I want to sleep with.
3.) I came across as too interested in her which is contrary to theory nr.2 so you can see I really don't know how exactly I messed up.
Can you tell me what your opinions are on this one? I'm a guy who really wants to know why things are the way they are and I just can't get why questions out of my head.
