Why does this nasty woman bother me so?!

So, I work with a couple of freaks. One is just a nut job the other is a Yeti. The Yeti likes to stare and will walk by your desk to see what you are doing or just look at your computer. She is mean to people on the phone and talks to them like they are retarded or something. When she gives out her office email address it is always in some condescending tone. Our addresses at work have a dash in them (-) she will give out hers and say dash then she has to add 'lak yew hyphenate yer name' IT MAKES ME SICK! Either say fucking dash and leave it at that or say hyphen, you stupid smelly Yeti! She does stink, there is some bad odor that comes from her. Today when she left she just had to cruise by my desk and she left behind some kind of stale stench. We got poinsettia's today (to make the office festive) and someone put one on the credenza in front of her blocking her from staring at me and the guy that sits in front of her. Well she just moved it over so she could look at us. When I got mine I placed it so she couldn't see me, the only problem is the guy behind me has to lean over to talk to me. He moved his (the one it moved) to his desk and placed it so she can't lean forward to stare at me while he is out of town. So she probably be doing a lot of traveling around the office mostly past my desk. I should feel special that my desk is so freakin popular with her. I am thinking of giving her a photo of myself so she can look at me when she's not at work!
Back to my question, why does she bother me so? I have tried on numerous occasions to tolerate her and not let her bug me. BUT it never fails it's like she tries that much harder to be a nasty bitch! Extra butting into conversations that she knows nothing about or has anything worth listening to to contribute. Sometimes she acts like she didn't hear something and will start asking 'whut'. All I want for Christmas is for Satan to come get his Mother!