When Did I Become "Abrasive"?

I don't remember being abrasive at any point in my life. I remember being brought up with a lot of respect for my elders and a concern for my fellow man (i.e. a democrat). Since law school, I have been referred to in some way or another as abrasive at least twice. When did this happen?

Have I always been this way, but now people are blunt enough to tell me? Did I become bitter in my twenties? Have I just become a bitch? Am I abrasive in the Cordelia Chase way, or do I go too far?

Is this a deep problem that I've never addressed? How can I change this? I'm only 23. There has to be time to fix this, right?

Am I in need of a deep personality make-over?