PRIVATE PRACTICE - "In Which Dell Finds His Fight" - The Oceanside Wellness Center takes on the fertility of one of their previous couples and starts a "Dads-to-be" class, much to Charlotte's displeasure; Sam and Naomi struggle to figure out where their relationship is going; Addison is conflicted about her status in the dating world, and Cooper begins a secret affair with one of his colleagues, on "Private Practice," WEDNESDAY, DECEMBER 5 (9:00-10:02 p.m., ET) on the ABC Television Network. (ABC/RICHARD CARTWRIGHT) TAYE DIGGS, CHRIS LOWELL