Robin returns from a trip to Argentina with her Argentinean boyfriend and Ted must adapt to life as just her friend and move on his pursuit to true love. Marshall and Lily successfully manage to keep their own dream apartment, only to find it in a bad location with poorer construction than they thought. Ted attempt to court Stella - a dermatologist he comes for removal of an ackward tattoo. Robin sleeps with Barney after he comforts her when she's in breakup again, which receives Ted's disagreement and decision to end their long-lasting friendship.