Girl acting distant after hookup?

Anonymous
I'm gonna need to provide some back story here so bear with me. One of my good friends set me up with her friend for a sorority date function. I ended up meeting the girl the night before the function, we hooked up and I spent the night at her house. Naturally I thought the next night would also go well but she acted somewhat distant.

She wasn't exactly outright ignoring me but she seemed way less interested than the night before. I am really confused as to how her interest could change that much in less than 24 hours. We went to a party later that night and she started talking to a bunch of other guys (one who she had hooked up with in the past.) That kind of annoyed me so I eventually left.

I texted her the day after and we exchanged a few back and forth but that was it. I actually like this girl but I don't want to waste my time and have her ditch me for some other guy. I'm thinking I should talk to my friend and see what's up. Any advice is appreciated.
Girl acting distant after hookup?
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