Disgraceful
She wasn't sure if he'd be able to abide by his words, but above all else, the one thing she couldn't abide was unfaithfulness.
"I don't want to get hurt by you again. I just don't trust you anymore. Other than mutual early attractions, we share little in common. I don't feel like things will work for us. Nothing about us are alike. We got into a crazy relationship on a whim, without a lot of thought. But in the back of your mind, you despise me for my background. It will never change. You fling it away because you are attracted to me, but it's still there. When I displease you someday, you will use it against me."