April is correct nice guys never get the girl, I think she backs off because she is embarrassed about what happened and she doesnt want you to think bad of her, at least I would think that way you know? Also I dont think she really likes you in that way because if she did she would go after you and and not shy away, I think the only way to find out is if you really ask her upfront how she feels about things, girls will tell you how they feel if you just ask, then just sit back and listen.