She can't get him another set of keys? They can't cost that much.
She has never stopped. I don't think she plans to stop. Right now your frustration is only hurting you. She doesn't care. So either get yourself to a place where you don't care or move forward..
I know you don't have enough room right now to keep your son with you but that would be one of my goals if I was you. Focus on you and your kids. Keep creating a better life for all of you. They depend on you. Let them be part of your motivation.
kat
Me-53(and learning!) S24, S21, D18, D17 Just keep swimming, Just keep swimming. Dory