Plot: Ruth is giddy about going to a tantric workshop with George, who retreats to the family's emergency shelter. Meanwhile, David's last bite at a sushi restaurant threatens to cost him--and Keith--a lot more than the bill; Nate drops a bomb on Barb, which sparks a counterattack; Claire fights Russell over credit for her latest photos; Margaret's hospital stay helps Brenda and Billy begin to heal their rift; and Vanessa shows she can beat Federico at his own game