What the hell is going on with this girl.?

Okay, so I met this chick and she's nice and all and then for the past 2 days, she's been really pissy, I just told her that I was pissed at this 1 chick for flirting and she gets all mad at me(it wasn't her that was flirting) Possibly she likes me? cause she is raging her *** off.