I know what you mean about feeling anxious. I'm sorry that you have to suspect these ulterior motives. I do think that when our spouses are in replay they may have those thoughts. I know my H often acted like he didn't mind or even encouraged situations where I would meet OM's. It really just adds to the load we have to bear.
But be encouraged!
My H certainly no longer feels that way now! Last July I had an entry in my journal, "Rock Bottom Sorrow". Just a year ago. We don't have the perfect M yet but we are both back in it!
Just wanted you to know I read your post and have a lot of empathy! rH
Me54/H47 '08 H is "done" March '12 H moved out Brink of D, December '12 2014 totally reconciled! ...... "I firmly believe in the...absolute possibility of marriage renewal." Jim Conway