Model Behavior

S6 E3: Carole and Aviva's explosive fight at Aviva's housewarming spills out into the party, shocking all in attendance. Ramona helps Avery get ready for prom and can barely come to terms with the fact that her little princess is leaving for college soon. Kristen gets pressure from her husband and Heather to run in a brutally physical mud run. Kristen reluctantly agrees to compete, but will she make it to the finish line with her body - and marriage - still intact?