<human>: So this girl and I have been talking for quite a while, we met each other last year and became good friends over that time. I always thought she was cute, but she never seemed interested in anything more, so I never pushed the issue.

Then at the start of summer last year, I could tell she was interested in me. I don't want to sound narcissistic, we were constantly texting, snap chatting, social media, etc. But over the summer, I was abroad in a different country, so I didn't think it was the ideal time to start a relationship. 

Once I returned from studying abroad, we didn't really talk to each other that much. We both go to the same university and met back up once school started.  (We're a part of the same club. That's how we met.) So I hadn't talked to her since the beginning of the summer.

Fast forward 3 weeks into the school year and we're in full flirtation mode again. Constantly talking, meeting for lunch, and so on. Then most recently, she had a party at her place. We spent most of the night together, just two drunk college kids enjoying each other's company. Then once the party died down, she invited to her room and just like that, we had sex. Since then, we haven't really talked at all, and it feels like she's more distant than usual.

I'm certain this isn't the first or last time this has happened to anyone, but there are a couple things I'm unsure of.

1) How do I talk to her about it? I don't want to freak her out by over-analyzing things, but I also don't want to keep this awkward-distant state we're currently in.

2) My own feelings, I'm not sure how I feel about the situation and what my feelings are for her. I don't know if it's better for me to try and start a relationship or not.

Any advice would be greatly appreciated.

Can you give me a shortened version of the text?
<bot>: Hooked up with a good friend of mine, not sure how to react or talk to her about the situation. Need advice.