she was sleeping in my arms that one night. Thats not much i guess.
Exactly. Nothing sexual, am I right?
Listen, she likes to play games. She likes the fact that you like her, that is it.
Here's my advice if you want to escalate it and possibly get laid...
Start ignoring her. When she calls, let it go to voicemail and never call back. Or answer and say "I'm out with Sheila (or some other girls name), I'll call you back." She'll think "What's wrong with me??" and up the ante. I've encountered girls like this. I'll bet my balls on that.