Does he have a history of depression? Many on this board get the ILYBNILWY speech when a spouse gets depressed or wants out because of an affair, emotional or physical. Your H sounds very confused. I would not take any of what he has said recently as the final word on anything. Sounds like he is on a rollercoaster. If by "keeping to himself" you mean isolating and seeing barely anyone, he sounds depressed. Will he consider going to individual or marriage counseling to help him sort out his confusion?