Maryangela,
I just read the post regarding thermostat....usually I am not very judgemental (or at least I do not express it) but your H is not good people. Heat in a house with kids involved? Surely there has to be someone out there who can treat you with the respect you deserve. I am sorry I draw the line at the well being of children. Anyone who puts a lock on a thermostat is not playing with a full deck.
My apologies if i am being too harsh or if i misunderstood something here. I will now read the rest of your sitch.