wow - a lot to think about. Thank you for all the valuable feedback. You are right that I am hurt by OM's presence. It probably will take a lot of time to get over something like this, but in the meantime, I am trying not to let it affect my conversations with W. In my journaling I do bring it up often, but I try to ignore that thought in my interactions with W (though I can understand how it may affect my tone or my words).
While I know I'm not "fixed" or anything of that nature, I do know that I will be a lot better off in my next relationship. Still have to keep working on myself to even further improve...