Couple of things here - first your company is aware of the problems (because you have told them repeatedly) and is actively choosing to do nothing. Maybe stop and try to figure that part out because they obviously do not value your comfort/opinion over this guy. You may have a lot of job satisfaction at this company but they do not value you equally in return. Second, the coworker is winning his passive-aggressive war against you and you are going down in flames in a remarkably public fashion thus damaging your standing and reputation. The company is "meh" about his behavior (which he knows) and will begin to only think of you as a complainer, difficult to work with, and can't get along with others (which is what he wants) regardless of past behavior and success. And you are sacrificing your nights and weekends and trust me they dont give you more "points" for your above and beyond efforts they may just assume you either have no other life or responsibilities or "that's just her". Now it's time to change your approach to the problem. Obviously a new job is a complete solution but if you want to stay in your current job you will need new tactics - turn his actions around on him. He mumbles and claims you don't help him? Then with GREAT and HIGHLY ENTHUSIASTIC SUPER POSITIVE ENERGY ask him how you can help him...every 30 minutes or so. Set your computer to meow or bark or some random noise like that for all your notifications and turn it up - your headphones will help keep it less bothersome for you. Even better have everyone else choose some random noise too, you could have it sounding like a zoo in that room it should drive him bonkers and you can declare a general "quiet zone" for everybody, including him. As for the smell that's tougher. He probably will always smell the way he does now if upper management claims they smell nothing. Further complaints from you will only make you look weak and whiny. Vicks Vapo Rub in your nostrils will help and maybe a deodorizing air freshener for the room. I had a smelly colleague once and I used a small indoor fan to blow the smell away from me. Not many good solutions for the smell. And set up a rotating, required schedule for the evening and weekend duty that everybody qualified participates in. When he refuses to do his part, document the hell out of him. If you want to stay at your job fight smart. BTW he is probably PISSED he hasn't been promoted and has you/your job in mind. He isn't behaving the way he does just randomly.