At least you know how close you are to them both physically and emotionally. What about meeting one of them for a quick lunch or something tomorrow? Is that usually ok with their Mother? Does she understand your depression? Do you both still talk? If you explained to her that you are having a difficult time right now and would like to see your children even for an hour...would she be ok with that?

Heather
"The Pessimist complains about the wind, the Optimist expects it to change and the REALIST adjusts his sails." ~~~author unknown