((((seacup))))
Welcome to sober recovery. We haven't met yet. I have been around here for a pretty good while. Even though I don't have a child addict I have 3siblings and a husband and a mom who is the biggest enabler you have ever met in your life. So I am no stranger to addiction.
I know you you don't want to stir up a fuss but the sooner you do the better for all concerned. You could get the law involved the next time he tries to break in. Or you could tell him you want him to leave and have someone else around when you do. You could pack up his stuff and throw it out side. There are lots of things you could do to get him out. But you do have to be willing to let him suffer his consequences other wise he could run over you for the next 30-40 years making your life miserable. I ain't easy but the sooner you do something the better.((((BIGHUGS))))