WOMEN HELP!!! How do I let my ex fiancé know I still want her and what is she possibly thinking?

It's been 3 months since she broke up with me and havnt seen each other, until almost 2 weeks ago since we talked and seen each other. When I seen her I told her I was sorry for not being open with my feelings and I want her to know everything about my feelings that i kept hidden cuz i know i can trust her with them now, and that I dont always have to agree on everything she does or says. She said she never expected me to but that I should have just been open.

She has been saying she could never trust me again and that I wasn't who she thought I was. But when I told her 2 weeks ago I would never promise to be everything she needed. Now she said I got her to thinking but she said she doesn't want that and doesn't want to care. And has kept trying to justify her negative feelings to me over petty minor stuff that was never an issue before.

I haven't made contact with her since I seen her and later that day she text me to let me know she was aggrevated that I got her to thinking. The last thing I told her then was that i would prove to her that I care and respect her and truely love her enough to fix this with her together and want her to trust me again. Then she asked "you know how ridiculous this is, right?" I Havnt said anything since.