hm, the best to do is to show that you don't like her behaviour towards you, step by step, by giving her a bit of her own taste
do not change towards her all at once, i think if you go step by step she'll understand how feel and change if she really cares about you
had a similar case once.... : D
don't mind my username, that was more than 10 years ago, I'm a different person now, amazing how people change ^_^







