Read the book "Not 'Just Friends" by Glass.. if you haven't yet done so. It will help you understand the "pull" these affairs can have. I wouldn't be surprised if it's the whole "in love" with the feeling of "being in love" thing that keeps a lot of people in these situations. In other words, hormones. An addiction to the hormones these relationships create (excitement, newness, the whole teenage crush feeling... I even experienced that during my divorce and it helped me really understand what the hormones are doing during a time like this... not that I had a serious relationship during my D or did anything with this guy but talk, but it was like an extra dosage of serotonin!!!!).
