In the season 11 premiere, Ariana puts on a brave face and attempts to rebuild her life after Tom's infidelity, despite sharing a house with her ex-boyfriend. Tom Schwartz tries to make peace with his friends, but discovers he's still excommunicated from the group. James settles into his new life of domestic bliss with Ally. Scheana opens up about her postpartum OCD diagnosis. Lala confides in Lisa Vanderpump about her regrettable treatment of a one-time nemesis, making a grand gesture that threatens to rock the boat with her friends.