For one, you kind of opened this can of worms by cheating on her from the get go. So, her being all confused and not knowing what to do should not be surprising to you. You have to just deal with what she wants because it's all your doing.
I would just move on because she probably won't get over that, being as though she's a jealous person and she's probably enjoying playing with YOUR feelings now as you did hers.

Just speaking from experience. It makes me feel great every time the guy that cheated on me calls and pours his heart out because I know HE knows that he messed up BADLY and it's been like 4 years and he still tries, LOL!

So, suck it up dear. You have to lie in this bed you've made.