HELP! Hubby never wants to admit he did something wrong

And I never thought it would be a big deal but it is, anytime I say he did something that hurt me he always tries to blame it on me and it pisses me off! Cause all I need is a "sorry babe, I didn't know, won't happen again" and end of discussion but every time he blames it on me I get really annoyed and it all goes out of proportion, any advice? I don't want to fight, just fix thing so we can move on and have a stronger relationship