my gf chews with her mouth open sometimes. It usually doesn't bother me, but when your mouth is gaping wide with food falling out and that wonderful smacking sound, nothing is greater. So i feel your pain bro.
like said earlier.... just tell him you have a pet peeve and just try to roll with it
yeah, but at least he isnt the world bigest cock blocker. i didnt meet the two girls that live across the hall till 2 weeks ago. the were scared of him, so they shut thier door everytime they heard my door open.