What did you do 13 yrs ago? Besides confronting your H, did you make any changes? Did he have any problems breaking it off with OM?
I did confront him and he broke it off right away although, in that instance, it was not someone he knew in real life. I don't recall making a lot of big changes but I did lose weight and care more about my physical appearance after that. He didn't seem to have any issues breaking it off but I did find out a year later that he was trying to contact her. Of course, he said it was just "to see how she was doing because he was worried about her - she had an abusive husband" to which I pitched a fit and promptly told him I would be gone if I found another thing from him to her or vice versa.