Most Helpful Girl
she bight be bipolar.
Most Helpful Guy
Dude your doing this COMPLETELY WRONG. You know that she's a ATTENTION SEEKER. There's only one way to stop her behaving like this. You have to treat her like she's second to your new 'Girl'. Talk about your girl like she's the best thing in the world and make sure you act like your crush has gone. She knows you still feel something but the trick is to tell her that when she is touchy with you put up barriers and tell her you want to respect your new girl. If you take away the attention your giving her it makes her understand you dont deal with bullshit.
Dont say you still like her because she likes the attention your giving her. Girls like attention by nature so dont give it to her excessively you need to in control. If she pisses you off and gets nasty get angry back and put her in position. Girls only respect you when they know they won't get away with disrespecting you. Learn from this...