Selling Sunset‘s Chrishell Stause wants her fans to keep it classy as they support her, even after costar Christine Quinn shaded her.Quinn, 31, made her feelings clear about the Young & the Restless alum, 34, when she liked a tweet calling the actress “sad” on Saturday, August 8.“I can’t stand Chrishell idk how Davina [Potratz] could sit there so calmly when that sad excuse of an ‘actress’ was like ‘I have a headache’ UGH I would have lost it,” the tweet read in reference to a scene on the