getting on my nerves ～にいらつく、～がしゃくにさわる

get on one's nerves ： ～にいらつく、～がしゃくにさわる
have a big head ： 自己中だ、天狗になる
be hard on [person] ： [ ]にキツい、厳しい
be happy for [person] ： [ ]に対して喜んであげる


Mark:Steve is really getting on my nerves these days.

Lisa:Really? Why?

Mark:He's had a big head since his article was published in that magazine.

Lisa:He seems fine to me. I think you're being too hard on him.

Mark:Hmm, maybe you're right. It was a good article.

Lisa:It was! I think we should be happy for him.