I've got to throw my hat in with the others (Jazz, et. al.) that it's time for you to move on. It's been a year, you're divorced, she's made no real statement that what she did was a mistake or, if it was, that she has any intention of trying to correct it. Like one of the other posters pointed out (and quite correctly), it takes BOTH partners to make a relationship work. While one can make the way home easier or harder, at some point, they both have to want it.
You point out you've "been faking it for a year". I think you're right. I'd also bet your XW knows it. It's time to start living like the divorced person you are. Perhaps after you've each played the field a bit, you'll both come to realize the value in what you had. It's a rare occurrence...but it does happen in some cases. If it doesn't, you'll be in a better position to deal with it and establish a meaningful relationship with someone else.
I'm sorry your XW seems to be toying with you. I'm sending good thoughts and wishes your way.
