It's seriously hard to do but give him space. If he doesn't answer about the kids, then just be there to pick them up. Be happy (I know but put on a :)).
Pretend for now his moodiness doesn't bother you. <--I wish I could follow this too!!!
Me:49 H:47 S: 16 T:27 M:25 My EA: 2001 His PA: 10/2007, 6/2013 Separated, but H still in house
Find your Shambala: a place of peace and happiness.