She is suddenly cool and aloof.  When you ask what's wrong she says nothing but you know that isn't the case.  That is passive aggressive behavior.  He agrees to do something together but sulks all day--passive aggressive behavior is at work.  Alvean and Doug discuss how to recognize and deal with a partner when they are consciously or unconsciously displaying passive aggressive tendencies.  To learn more and for a full transcript of this episode, click here: 68-The Passive-Aggressive Partner