This is a continuation of something I've posted earlier but I think I've reached a stage where I feel maybe I've fucked it so need to repost.

Living at college atm with this girl and went out as a group twice. I didn't manage to isolate successfully.

Tonight we went out again for a trivia night (not much drinking) and I asked her to come to my room so I could pass/explain some of the textbooks (we're doing the same course). She agreed. We talked a bit and then sat down on my bed. She did lick her lips a couple of times. I sat with my leg touching hers but she moved it away about 10-15 sec and as the convo progressed I swear her distance from me increased. After a bit more talking the opportunity to flirt/touch came up and I joked about it's length by pulling it gently and she responded by curtly telling me not to pull her hair in a non flitartious way. We were talking about weather so I jokingly put my hand on her thigh commenting on how it was really cold (it was) for a few seconds and then when she didn't move a little higher up but only for another few seconds. About 10 sec later she mentioned she had to go to bed soon, and then about a minute later stood up to leave.

I just feel frustrated because I had her RIGHT THERE on my bed and I thought I DID escalate. I did consider moving closer to her face but I didn't want to move closer if she was moving away.

Other details

She has a LDR boyfriend but hasn't mentioned it to me. She's didn't give me strong IOIs before as she didn't seek me out for convos/touch me/ask me personal questions but she gives rich answers in convos.

The weird thing is that I notice she's real friendly/smiley with all the guys (even the ones I know she doesn't like romantically) but more reticent/evasive eye contact with me but when she does talk to me she always stands real close think breasts near my shoulders then steps back/looks away so I'm wondering if she's playing hard to get).

In summary, was this a girl that wasn't interested in me in the first place (but then why the hell would she come into my room?) or did I stuff up somewhere along the line like should I have moved my face closer to hers ignoring the fact that her body was slightly retracted???? So close but so far :(