Giving head?

Hi! So I’m new to sex lost it at 19 , to some guy there, it’s kind of complicated, however I hooked up with a friend, it was fine the first and second time but the third time I don’t know what happened, he said I was using too much teeth that day? So how do you give good head? He hasn’t spoken to me a lot since that weekend? Should I confront him or just give him his space? Afterwards he said he enjoyed it, but still I can be a little insecure Idk what to do