Don't lie to me like that. You want it. You want to do the end of this questline, because it's so badass. I was spinning circles in my seat and giggling maniacally at how Kanrethad completely wiped the roof of the Black Temple with my body for two hours straight, because it was so much fun to be challenged not merely as a player, but as a whole warlock. You're going to use abilities you've almost never used before in this questline, and you're going to love all of it.
I hope I don't have to say it too much, but spoilers ahead.