CC, Sometimes we have to tell them how we feel. You've done that and now he knows how you feel and what his actions are doing to his family. Now, you need to step back and give him plenty of time and space to digest what you've said.
Set your boundaries and stick to them. Do not waiver or he'll continue to disrespect you and your family by not adhering to them.
Sit quietly, the answers will reveal themselves when you least expect them to. The past is gone, the present is a gift and you need to focus on today, allow the future to reveal itself when it is ready.