Mopsey, You set the "C" straight. He doesn't sound pro-marriage at all. I'm sorry to hear that he isn't. As for your son, take him the final time and then listen to what your son tells you about the visit. If your son doesn't feel comfortable going to this one, you may want to consider someone else.
As for your daughter--I hope she has a beautiful birthday! Enjoy her special day w/her!
Mopsey, you are now understanding more and more why it's important to detach and allow their comments to roll off your back.
Please take care of yourself.
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.