Together Since We Were 15...Now Piecing

[MrBond]

This has nothing to do with forgiveness. She's forgiven him and he her. But this doesn't mean that he can continue to see the OW and her not feel comfortable about it.

I don't even know why you're debating this. The OW is there, he socializes with her and she's uncomfortable. In a M if you were uncomfortable with something your spouse was doing and you told them but they kept doing it, this causes resentment. Resentment breeds contempt and you find yourself here all over again.