She thinks I'm a pushover so how do I change that?

Ive kinda messed up with this girl I'm talking too and really like. She said she liked me but if I tried pushing her on it she would get defensive. The thing is I think I made the mistake of letting her know I do like her a lot and I know when girls pick up on that they lose interest. She already accused me of being crazy for her,and I told her I just liked her that I wouldn't say I was crazy about her. Were talking a lot less than we were. so I just wanna know some good damage control so she doesn't think I'm a pushover. or is it too late?
She thinks I'm a pushover so how do I change that?
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