It‘s over 之前你说了什么？ 下次你可以说 That's all.

usually it is about relationships ending. It can also be about other things, some unpleasant task finishes => "thank goodness that it is over". an elderly relative may die after a very long and painful sickness => "it is for the best that it is over". A.

I think it means"we are done"\"we split up".