I've thought the same thing.
Funny thing is, I talked to my exbf that I had been with for 7 years prior to meeting my BP and have told him most of the behaviors and exchanges that went on between the BP and myself and he was astonished that I would have ever put up with any of it... .that that is not the girl he has known all along. I have to agree with him too... .I'm a tough cookie, but this relationship brought me to my knees. Abuse; verbal, emotional, pyschological, or physical is a killer ,no doubt about it.
It's just what I tell myself everyday. Now I wish I was not as tough cookie with previous sane gf. The world is unfair.