Stassi refuses to forgive Katie for attending Scheana's bachelorette party, forcing Katie to make a tough decision; Peter asks Vail out on a date; Kristen meets the woman with whom Tom Sandoval allegedly cheated.
Cast:
Lisa Vanderpump
Tom Sandoval
Kristen Doute
Katie Maloney
Vail Bloom
Ariana Madix
Tom Schwartz
Mike Shay
Jax Taylor