PRIVATE PRACTICE - "Ex-Life" - As Archer recoups from surgery, Derek has Addison work with his pregnant neuro patient; after Sam suffers a sudden asthma attack, Bailey and Naomi work together to find the root cause of Sam's sudden attack; and at Oceanside Wellness, Cooper, Violet and Pete work together to treat a mother suffering from postpartum depression, on "Private Practice," THURSDAY, FEBRUARY 12 (10:02-11:00 p.m., ET) on the ABC Television Network. (ABC/ERIC MCCANDLESS) KATE WALSH, JUSTIN CHAMBERS