The Miseducation of Mary Cosby

Despite being in over her head financially, Whitney throws a lavish party for her Wild Rose rebrand; but Jennie uses the opportunity to confront Mary for her tone-deaf comments at Pho. Meanwhile, Lisa gets Jack ready for prom and Jen questions who her true friends are in the group. Heather and Whitney suspect it may have been one of the women who turned Jen into the authorities.