K, I wouldn't call him...why ruin your holiday w/informatiion that he may have about the situation?
I would email him and ask if it is business related. If he says no, I would politely advise him that you do not wish to hear anything more about what is going on with your h and his situation.
Don't put yourself through any more heartache right now. You deserve some time to enjoy yourself during the holidays and whatever he has to tell you...well...it can wait.
The only saying "misery loves company"...well, I think the man emailing you wants you right in the same pot with him...don't go there right now.
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.