No, he won't! He couldn't even refrain from messaging his schmoopie while he was right next to his daughter.

This can be a chance to teach your daughter that cheaters seldom change, and educate her so she won't buy any cheaters BS when she is dating. You can also educate her that her father is a limited imperfect person. Also that him cheating on his wife is not him cheating on his daughter, and try to keep the two separate.