Do you realise this is one of the most common pussy-ass stories there is? Why are you wanting to regain her trust so you can continue to creep her out?

You've become untrustworthy, she told you everything because she trusted you. Now you tell her all this shit, and she's understandably angry at you.

You can say 'look there's no need to be immature about this, I've said it, lets move on' and you can be friends again (never as good as you were though).

Or you can go fuck some other girls and forget about her.