Is OTHER wrong in the post ? POST : tl;dr  Open-office rage.   I cannot get over my hatred for my co-worker, to the point I have to change jobs, and it will let down important projects for a lot of people who I care about.

AITA for not being able to get over the following concerning, let's say, "Chatty Rob"

* The setting:  we work in about a 20x40 "team room" open office containing 12 people.   Close your eyes and consider how tight this space is.  Whatever one person wants to talk about is basically what everyone has to talk about. 
* Meet Chatty Rob, the compulsive one-way talker who can turn any interaction into a 10-minute digression
* He's not an un-nice guy, midwestern nice, except the aforementioned overtalking and things I'll mention below
* He really wants everyone to know all about his hobbies, which are guns and martial arts (sidebar - he has no military experience, I do, and he's not much interested in my perspective)
* He has a loud boisterous ringtone, I believe it's Looney Tunes 'That's All Folks'
* Rob doesn't have much sense of personal space.   Which is fine, except
* He doesn't seem to be a big fan of flossing, judging from the black cloud of death emanating from his gums
* When he comes to work in the morning we get 15 minutes of sports, traffic, weather from Rob.   At 3PM he declares he needs to leave to get ahead of the traffic, then digresses for another 30 minutes of news, sports, weather, and the latest idiocy from those idiots at headquarters.
* Last thing... I'll lose some sympathy here probably, but when it comes to politics in the workplace, I believe in being very passive and neutral because it's not relevant and nobody needs the conflict.   Chatty Rob on the other hand freely goes on about building Trump's wall, putting Hillary in jail, and similar themes (seemingly oblivious that we share the space with a woman, a black dude, a chinese dude, and 3 Indians).    Those are the exact opposite of my politics, so naturally I hate them, but more than that I hate that he talks about them in a shared space where anybody with half a brain might realize, hey, maybe not everybody wants to hear my thoughts on this shit.

I've raised this with management a couple of times.   They don't respond, we're a conflict-averse organization.   I try to drop hints like walling myself off with 3 monitors, or saying "OK good chat Rob" after 30 seconds.   None of it works.   I don't even know how to broach the subject that someone has bad breath.   It seems ridiculous that I even have to waste brainpower on this in a Fortune 100 company where everyone is supposedly professional.

It's really sad because I want to do a lot of good things to help this organization, and a number of key projects depend on me.   But quite honestly, for my mental health, I just can't work with Rob anymore.   Ever.   Can't even be in a meeting with him.  I've gone to working from home 3 days a week to avoid the shared space, and mentally speaking, it's making me kind of mental to be so isolated.

So I feel like the asshole because I unprofessionally cannot find a way to get over an annoying co-worker grudge.   In fact, am I?

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