It prepared him for divorce...
If it's hers, she gets it. If it's his, she gets it.
My buddy married the cute blond at work, but she soon started a hot arrangement with her neighbor and took off with him. As soon as my friend learned about it, he filed for divorce and had the goods on her. Her lawyer suggested she act like she was repentant and go back to her husband. She did, and shortly afterwards she filed for divorce and took her hubby for all he had. He was unable to use the infidelity ploy as he had taken her back. Lawyers are scum and so are faithless females like her.
Not if he has the video....
My divorce went very smoothly, and she unwittingly supplied the evidence.