But she has still been initiating communication with me. Yesterday morning she e-mailed me from work asking if I wanted to go on a break with her to run back to my place and get a soda. I've got a soft spot for her so I accepted.
IMHO, you are being way to accomodating to her. I know you have a soft spot, but you are at her beck and call and she knows it. Heck, you know it. Listen, I have been there. You hang on for any little crumb off the dessert that the W drops for you. But you can't go on living on crumbs can you? You want the whole dessert. To get the whole thing, you can't let her take advantage of you. She is getting the best of both worlds right now. She gets her affair, and she gets you. That certainly is not healthy for you!