All you can do is be consistent with your assurances and act in a way that reflects them. What you've been doing all along.
I was starting to suspect that there was more to the story because it really doesn't add up that both you and she feel that you'll be alone forever if she leaves you (as if you have 3 heads or something,) you still want her back after all of she's done and how crazy she's acting, and then the trust issue. I can see that she is afraid that you'll hold it over her head, so that explains the trust issue. Anyway... Moving right along...
