Did zero hate yuuki

No he's actually in love with her but yuuki is blind when it comes to love and doesn't know it.

He would risk his life for yuuki and in episode 6 he says he could never hate her, after she asked him if he did.

He also covers her up with a blanket when he finds her asleep on the couch in episode 8. He goes to drink her blood but he holds back his instincts and ends but being pulled away from yuuki when kaname comes to talk to him about his feelings fpr yuuki anf that he knows zero is in love with her too.

(Spoilers..)Zero also mentions later after she is a vampire that Yuuki is his enemy and next time he sees her he will kill her. But he really doesn't hate her! He just hates what she is (Pureblood) so he didn't really mean those things because even though she isn't human Yuuki, he still loves her at my guess.