So this girl I've been talking to on and off has been giving me mixed signals. Like she knows I like her (because I asked her out last week) but then she gave this excuse that her and a ex had a bad time, and then I asked for her sc and she said sure she would give it to me. But today I was just standing next to a rail ( this is high school) and she just oddly looked at me and walked passed me. I've decided myself not to talk to her but I'm thinking maybe I'm irrational. When we talk she usually laughs at my jokes, but I know jokes don't mean ****. What should I do?