Straight off the bat ...the other posters are right . Your better off without this guy .. and that's from me who is normally the defender of the down trodden, mature , middle class male .
Your going to have to find a way of moving on . You've tried a few things since the break and they have only driven you and the weasle ( oh I mean guy ) further apart . Love and hate aren't opposites , they aren't all that far apart from each other . They both are strong emotions which by pass logical thinking . It's easy for one or both parties to move from one of those emotions to the other when there's a breakdown of a relationship .
It might be wise to have no contact at all until he doesn't arouse a strong emotion in you . Then possibly you can be friends if you really want that .
you need to move on to something bigger and better in your life , not grieve something that's already lost . Easier said than done I suppose , but you owe it to yourself to give it your best effort . The pain will fade once you feel apathy towards this guy , which is the opposite of love .