This.
Especially when the affair was discovered not confessed by the cheater. It would still be going on if they hadn’t been found out and they had no intention of giving up the AP out of choice.
People don’t suddenly change into great husbands who are full of remorse and enthusiastic and invested in repairing things and having a healthy relationship.
They’re usually just annoyed their relationship with the AP has been rumbled and ruined and they just say and do absolutely anything they need to in order to get their wife to believe it was a mistake, let them stay and stop talking about it..including crying, pleading, telling you you’re the only one and the love of their life and it was the OW pursuing them blah blah blah.
If a reality check is needed in moments during their begging and pleading that they love you it often helps to remember when the affair was happening he was going down on her then coming home and kissing you goodnight. Repeatedly.
Sorry if that’s crass and seems a bit strong but it really is the reality of how little respect he has for you. His behaviour and treatment of you has been utterly disgusting and it doesn’t help to minimise that. If he stopped showering or cleaning his teeth you’d go off him soon enough because it’s disgusting..not sure why the thought of what he’s being doing to another woman (usually repeatedly) while he was with you and still being intimate with you isn’t a total turn off!
It sounds like I have no empathy or understanding but I honestly do. Wanting to believe so badly that the man you married isn’t a completely different person drives you to see the positives and believe what he’s saying because the alternative of admitting he’s untrustworthy and doesn’t care or love you the way he should is too much to bear.
I honestly think they need to be kicked out on discovery or very shortly after to live on their own or with a friend. Do their own washing, cooking and everything else. Go to individual and couples therapy while you do the same and have some space away from them. If they’re still invested in making a go of it in 6 months and they haven’t gone off to be with the AP or someone else then and ONLY then are they deserving of you trying to work on things. Make them show you how it really is don’t just listen to their words while they sit in your comfortable home barely facing any real consequences.
No real change to their life and no huge difficulty for them = a green light to do it again once the dust has settled.