I can imagine how frustrated you are feeling with your H.
I know that I used to feel my H was so immature and emotionally juvenile when it came to the OW and I couldn't believe how much he loved having his ego stroked
Hang on to the thought that if your H did really want to leave you he has had plenty of opportunity to.....and he hasn't. That is what you have to go by.
OW is a woman scorned, (ha ha!!!!!!), and they are nasty and vindictive often. I am really pleased you have decided to not contact her because you are very unlikely to hear anything truthful from her.
Saffie me 46 H 46 M in 1986 D20,D18,S16,D13 H's A 01/05 to 07/06 H recommitted to M 07/06 renewed vows 09/06 Going from strength to strength