What do i say to that?

I've tried to do so but all she says is You knew I was like this when you met me...so why you trying to changh me now? And she also say if you don't like it you know what to do about it...meaning break up
What do I say to that

I would say she doesn't care at all about you. Break up, cause shes not going to change a simple thing like that for someone she supposly loves. I mean I am a really big 3itch at times but I am not like her. She needs to grow up and tell her that for me lol.