Also, against my better judgement I told him if he wanted to try he could come home
Why would you do something against your better judgment?
Why are you handing the reins of your one precious life over to a person who probably can't even tie his shoes 75% of the time he is awake?
When are you going to take responsibility for your life by (1) following your better judgment and (2) figuring out what you do and do not want for your life?
he refuses saying that why would he do that - to put up with my verbal abuse. For someone who complains about not being here....he sure is in no hurry to come back.
Well, ARE you verbally abusive with this person in your life?