I am one of those fence-sitters, though trust me, we'd rather have clarity than dine on cake. I am of the firm belief that if the cheating H has a reservoir in his heart for you, and if he could find it, that you two have a chance, and actually you have the advantage over the AP. My issue is that I am convinced that I have never been in love with my W, and that my indiscretion was 2 parts Exit, and one part true Love for the first time (with the AP). The prognosis is not good for me, but that doesn't mean that it can't work for you. Good luck, and continue to be your best self - the you he did fall in love with. After all, if he does ditch, that's who'll you want to b e anyway.