I have a situation where as I have just moved from NYC to suffolk, do I have to legally give my new phone number (i have a cell# already) and new address to my ex girlfriend who my son resides with. I have undergone countless hours of nasty messages and previous intrusions to my home from this young lady. I would hate to have all this happen all over again. We have never been to court but she does receive $600 a month from me for child support.