9x17 Not in My Mouth

When Zoe doesn't return his "I love you," Walden retaliates by immediately picking up on another woman.

9X16 Sips, Sonnets and Sodomy

Alan and Walden are stuck at home with their feuding girlfriends on Valentine's Day because of a torrential storm.

9x15 The Duchess of Dull-in-Sack

Walden tries to loosen up Zoey by sharing a couple of Berta's special brownies.