He raged and intentionally lost the game because I devoured a creep he was attacking early in the game. 

I had necro with spires so he would buy observer wards the second they would come available and then sell them instantly to prevent me from using.  You can watch him do this on the replay.  He waits by the tavern shop for wards to come available so he can buy them then sell so I can't use.

I would also buy sentry wards on leaver to deward enemy and c0urage would sell the wards on leaver as well to prevent me from dewarding.  He also afk'd twice in the game, refused to help defend base when we were being raxxed, he would neutral creep only.