Husband came home drunk

Was very happy during this CB period that he had alot time to spend with me while i am pregnant. Currently going to 37 wks.. once the CB is over, he then went out for drinks with his guy friends. But the problem is he came home drunk n cant even walk properly or to shower first before he pass out. He is not under any stress, financial problem or unhappiness. Its just he cant change n leave his guy friends and be more sensible abit. Feel like just leave him and divorce him, go back to my family and i am stress free of this matter. Cant imagine when bb is born alr and he is still like this..