Nah, you're not abrasive. A little opinionated maybe. And maybe a little hard-headed. Well, maybe more than a little. Come to think of it, a whole lot more than a little.
And definately opinionated, I mean, every conversation we have, you have your opinion and never - never - deviate from it. So I'd have to say your're extremely opinionated and hard-headed. And definitely abrasive to boot.
;o)