why is the chef so mean? i don´t like that he is hurting sooha so much

Chef thinks he's doing the right thing since Sooha described his perfect "woman" which is clearly nothing like chef at dinner. All the "Tsks" have actually been chef disappointed in himself for getting turned on by Sooha. That's why he leaves the room so suddenly. These are all guesses btw ╮(￣▽￣)╭

ah oki.. well you could have a point there..