Is AUTHOR wrong in the post ? POST : My partner’s brother recently relapsed on meth and wants to get away from where he is currently living as he blames that situation on the reason why he relapsed. 

I really don’t feel comfortable having him stay at our house if we aren’t home however my mother and sister made me feel guilty about it. They asked how I would feel if roles were reversed - would I let my sister stay?  Truth be told, if my sister was using meth my answer would be exactly the same. I suggested that maybe he needs to go to a rehab facility instead. 

AITA here? 