Pursuing a party girl… am I tripping?

So I met this college girl (20f) at a party for the first time and we made out but I had work the next day so I had to leave early and left her there (rookie mistake) and she was drinking and made out with some other dude after I left.

Fast forward a month past and my coworker knew her from high school and so we went out together and it was a really good date and she had a lot of green flags just disregarding that night and even before the date and post party she texted me first all the time.

I got out of a long relationship and this was the first time I kind of got out of my shell and i never even knew her before so I feel I can’t really hold her single actions against her, even if it was kinda like she played me that night, but I didn’t even know her and can’t expect loyalty from a girl who’s not exclusive with and i just feel like it’s normal college actions to be expected. Am I tripping and delusional or should I see it through ???