Alright so this girl I've been trying to game for a while now (with a decent amount of success, nothing to major though) is very... blunt with her statements towards people. If someone says or does something that bothers her she always lets them know right away... usually. I'm the exception to that rule. So the other day me, her, and a group of friends are hanging out and I'm drumming my hands on the table. (Not the best move when your gaming I know but I didn't really give a shit at that point I was bored.) So she gets real pissed about it, but she doesn't know who's doing it. She said and I quote "Come on, who's doing that. Just knock it the **** off." A friend of mine points out to her that it was me, and suddenly her mood about it completely changes and she just stops caring about it. This is not the first time that sort of thing has happened. I still stopped afterwards but the more I thought about this the more it bugged me that once she learned it was me she stopped caring completely, so is that like... a good thing or a bad thing?

I would say good thing. Girls usually act different around guys they like.