Just remember that things happen for a reason. From what I have studied and read, marriage is there to "Fix" your issues.
One partner gets to a point where they are brave enough to leave a bad sitch. Change the sitch so they have second thoughts. This is part of the normal process. You can't control him, but you can control you and how you interact and respond to him. You change the way you interact, forces him to change the way he interacts.
Enjoy the intimate times. Nothing wrong if you are confident that he is being exclusive with you. Just know many of us believed there was no affair. Make sure your eyes are wide open.
I believe surprising your spouse in the bedroom may help. I try surprising my lady with new things on a regular basis. Doing some 180's in the bedroom may be worth testing. Example, if communication was lacking, do more talking. If sessions were short, make them longer. If he always initiated, you start initiating more.
"What is best for my kids is best for me" Amor Fati Link to quotes: https://www.divorcebusting.com/forums/ubbthreads.php?ubb=showflat&Number=2879712