When I told him I wouldn’t be back till midnight, he went off on one.

【go】当我告诉他我要到半夜才回来时，他就走了。

I wound it down, pulling the universal face you make when your sister is going off on one at the other end of your phone and you're really sorry but you can't cut her short.

我把它拉下来，当你姐姐在你手机的另一端离开时， 你会做出那种通用的表情， 你真的很抱歉， 但你不能打断她。