回复：回复：虫:That colleague (D) is really a stupid idiot

隐含意义的wording is bad in situations like this. You want to be clear to the point that there is not other way interpreting the meaning.

To other colelagues, just say that you don't want to talk about it or simply change topic. They will understand.

D is not entirely stupid then. She is painting an image of being victimized.