I know it is not easy but your focus really has to continue to be on yourself and your kids. Don't get too caught up in OW. It is a lot easier to say than do, though. LOL. I think that there are really little magical qualities to the average OM/OW. They are usually someone who happens to be in the wrong place at the right time. Yes, they have a "pull" but I think that the "push" of whatever went awry in the M is usually stronger than the OW/OM "pull". The WAS sense of dissatisfaction is in many cases the fundamental issue.
I am not sure if the above makes sense to you. I just know that LBS can beat themselves up in the comparison OM/OW game and that is really not a road to be travelled on too often. It can be a one way street to a place that is not good.
If you do want to find out, you will have to ask him and hope that he is truthful. Keep on "doing Flo". You are doing well in difficult circumstances. Congrats on the job!