[lectrick]

> I started fighting him, and his GF (who he had just been beating) smashed a bottle on my head.

I'd say "what in the actual fuck," but I know that those sorts of patterns are self-perpetuating and that since the woman was already in a place where she was allowing him to beat her, she'd fight to preserve status quo, as fucked up as that is. Did you first at least attempt to verbally stop him before you took it to the physical? Anyway, wow.