I once got a letter from a man I was already wanting to end a relationship with, that ended with "your a great woman" blah blah blah and that was sort of the impetus I needed to decide once and for all to be done...
He was uber needy and made me crazy as it was, but somehow the your vs. you're issue made it easier to decide to end things... That was 20 years ago... Guess Ive been a grammar nazi a long time...