Hopeful, I would tend to think from what you've shared that if you could avoid dealing with MIL and work with your H, that would be the better option.
So, how do you both discuss weekend plans re: the children? Do you somehow review the activities for the weekend, which include your MIL and the children?
Laurie
Laurie, Divorce Busting Coach Contact The Divorce Busting Center at 303-444-7004 or 800-664-2435 if you would like to schedule a telephone consultation with a DB Coach - or email virginia@divorcebusting.com for info.