So I was doing the Vault in DF with a friend to unlock the second stage of our anima weapon. The Duty started off quite normal with the standard hello, we told both the mentor(healer) and the other person(Dragoon) to go a bit slower since I'm playing on an older laptop... Ofcourse the mentor just rushed ahead despite our warning until the first boss.

And here it just went downhill...
She started making us out to learn and play our classes, cursing in French (which me and my friend understood since we're Belgians) She said this: "Great now I need to play bad for some stupid kids, it sucks..." Then my friend says that she better learns her classes again, since she was just rush pulling even though we warned her not to...

Then she just kicked me out of the Duty for no reason and continued harassing and trolling my friend who just left the Duty 5 minutes after.