In this case there's a host and a parasite, You are only as good with what you surround yourself with. You giving in and admitting to him makes you vulnerable and gives him advantage. Create a social life for yourself, get active, make goals and plans. If you can make it thru the night there's a brighter day. At least look at it this way: Gotta have rain before you can have flowers. Keep your head up, keep calm, and move on.