In season 4 opener, Mitch’s ex-wife, Gayle, arrives back in town for a visit ‘coldly’ with her new fiancé, a wealthy businessman named Ken, in which Mitch has conflicting emotions about his ex-wife remarrying again and Hobie gaining ‘out of character’ interest in his potential step-father. Meanwhile, Matt doesn’t know where he will live after he decides to stay in California rather than move to France with his parents.