Why cant i see what someone posted but they can see what i posted if they are blocked?

ok my friend had a bunch of comments on his status of just him and i said "are u talking to urself er do i got someone blocked lol" then i logged out of my account and into my other friends and below my comment it said "hes talkin to me is it your business" but when i log into mine i cant see it??? it doesnt make since someone I blocked can see what i posted but i cant see what she posted? wtf is wrong