By all means you both should go to the baseball games. Sit with him and just enjoy watching your son. As hard as it may seem act like things are ok without getting into R talk. Dont act like you are already D because you are not. Be upbeat and detach detach detach....
This approach will help you and will be great for the kids. The one thing you have to try to be is pleasant with each other in front of the kids. This only helps H realize what he may be giving up.
With regards to MC I would let H take the lead on this. If he asks for you to help find one then go ahead otherwise let him take the lead.
