Postscriptum:

Dear katiescarlett,

talking about how hurting sexual unfaithfulness is makes only sense, when your partner is ready to imagine that and change from his view to yours. This requires a change of his understanding.

Of course, there would be a quick method to open his eyes by telling him simply he has been cheated. But this method is cruel and not promising a change for good or the desired result, it would be more a kind of emotional overkill.

Insist on therapy (if you are not already determined to leave). That would be my advice, and I hope the best for you and your family!

Best wishes,
bluna