If a tank loses aggro, whose fault is it?

[Vexander]

Yeah that was the tank's fault, not yours. I can only imagine his waifu was spamming Fire one then clearing Astral Fire at three stacks or something.

[birdy_reene]

In your situation you described, it was the tanks fault, now in lvl 60 dungeons, where you as dps could be ilv 250+ and he may be lvl 200 ish. Id put the blame on you. But in your situation you laid out. The tank was to blame.