What pisses me off a bit is that I know that, since I'm a healer and can't die under any circumstances or we'll be in trouble, watch guides to new dungeons on Youtube, yet the tank, who's equally important, doesn't even consider following advice after the boss prove him wrong 2 times already.
Yea, the DPS messed up, too, but with a tank who knows what he's doing, we can just down that boss without DDs. I'm a Scholar, if I don't have to spamheal, I can put out decent DPS, too. And with only me on the aggro list, a tank can spam DPS moves.
Had that before, was doable. Took a bit longer but was no problem.

That's why I can't get over that tank and already kinda dismissed the DPS's fails.