Open Question: GIRLS: please give me your opinion/advice?

I’m a Junior (M) in college and never had a girlfriend before and last Sunday was my first kiss. Lately I’ve been talking to this girl who is a sophomore that recently transferred to my college since her previous college did not have the courses for her major. I only know her because she’s my sister’s boyfriend’s sister. I knew her before her transfer and never really talked to her till a few weeks ago.

We’d send each other text messages and snapchats all the time, but she’d never send me snapchats of herself, just what she’s eating etc. She never gave me any signs that she’s into me other than a few emoticons, but I was into her and I’d make her laugh sometimes and she’d joke around with me too.

Last Sunday I spent the night at her apartment and watched a couple movies on her bed. Just for the record, I was making all the signs that I was into her while she showed me none. Nothing happened until the last movie we started to make out. This was when she showed me a sign since she and I was feeling each other up but we did not have sex or anything. After the movie we fell asleep cuddling. The next morning we walked me out since I had class to attend early but as I left I didn’t know how to react in body language so I just gave her a side hug (I know, stupid me).

Now since that day we still text each other and I’d make her laugh still, but not as much anymore. She’d give short and straightfoward text messages, no jokes or emoticons and whatnot. I’m not sure if it was me or if it was because she had an upcomming test tonight (Wednesday) and if she’d be too focused on studying so I eased off on the frequent texting. She even mentioned to me that she wants to transfer to another college because she doesn’t like it here since she wants to be away from her family. I didn’t like the thought of her transferring since I haven’t «clicked» with anyone.

So now I don’t know what to do. Am I wrong feeling that she’s not into me anymore?

TL;DR:
Im inexperienced.
Made out, cuddled, spent the night at her apt last weekend. (friend of mine)
She’s busy from her exams haven’t talked much after that weekend or even mentioned about what happened.
what should my next move be after she’s finished studying/all her exam?

Open Question: GIRLS: please give me your opinion/advice?