The biggest hurdle we all face is time. Learning to be patient during this emotional time period is so very hard. We all try to look for little clues as to how our WAS are thinking. When we see something optimistic, then anything that we see contrary to that brings us down. The goal is to not overanalyze things too much.
As I have told you before, when you H is ready to come back and commit himself to your M, you will know it. Until then, the nice little nuances like a peck on the cheek or calling you honey are nice and help to keep your hopes up. Just make sure that when you dont see those for a while or you pick up bad vibes that they dont take your hopes away.
Until the day comes when a light goes off in your H's mind, just accept and cherish the family time as something precious. Keep a smile on your face when your D and H are with you. Be the best mother for your D and I am sure eventually you H will notice what he is foresaking.