My ex-husband, his girlfriend, and her two kids are living in our house. He and I are currently splitting the mortgage payment in half. The divorce decree says that we split the payment down the middle. Am I still obligated to pay my half even though his new family is living there? He is wanting me to continue to pay my half even though both of them have a job and can pay it on their own. Would I have a fighting chance in court? Am I able to give up my rights to the house still? Or is it too late? And what would that mean?