I'm glad to hear that your wife has changed her mind. i know that it is hard to trust someone who hurt you so much. A lot of people say that people can't change. But I know they can.....if they really want to. You and your wife could benefit a lot from going to a Retrouvaille weekend. Check the website, www.helpourmarriage.org for information on the program and the dates and locations of upcoming weekends. The weekend would give both of you a lot of time to think deeply about your marriage and your lives and what you really want. It is sort of a 48 hour meditation on love, marriage, human relations, and how to talk to each other.
I highly recommend it. My H and I went 3 years ago, and it changed our lives forever.