This will continue until YOU decide that honesty and fidelity in your marriage is more important than having your flannel nighie laid out, and your deceitful husband making you grilled cheese and coup.
He's playing you, HE knows he's playing you, YOU know he's playing you, and -- most destructively -- HE KNOWS THAT YOU KNOW that he's playing you . . . and yet you allow it to continue.
It's completely up to you. But DON'T expect anything to change.