Open Question

What would you do if a person, one of the closest to you, hurts you all the time? The problem is he definitely knows that he's hurting you, but he just cannot stop it, for only-God-knows-why reason.
This is a real question and I'm really expecting any sorts of different answers.

Quick P.S : I don't expect "talk to him" as an answer, coz we don't really 'talk' and everytime we talk, you as the third party can hear every single thing hurting me more (and that time you'll pity me).

I havent' decided what to do yet.