I cheated on my girlfriend with my ex for months, now she's found that out, she always didn't like the kind of person I was, gave me chances to change and I screwed up everything. I didn't know how much she meant to me until now after she says she doesn't want me any more.. I'll do anything and everything to get her back.. I know she doesn't trust me any more but I can't live without her.. I love her so much.. What do I do? How do I make her give me one last chance to be true and honest.