Hi Teke,
Something sounds truly wrong here. Let's think about it....he HAS an apartment but obviously doesn't want to be alone. Doesn't want the company of his dad, or grandma, but wants YOUR comapny, perhaps because you don't raise any issues of what is bothering him?
Sounds like some sort of depression to me, but I'm not a Doctor.
Do you know why he left his police job? That sure must have been a wrenching decsion on his part, a good job, alone with pension and benefits.
Did something happen on that job?
Sorry if this was already explained, I haven't been on too much as of late.
Hugs to you, Teke.