LStewart,
Yes,my H behaved in similar ways.Keep doing what is obviously working.

Your H's comments are immature and a cry for reinforcement from you.Respond in a kind,but matter of fact manner.ie."Yes,my life can be successful w/o you,however,I love you and our marriage is my priority".

Don't take it any further and change the subject skillfully.These types of behaviors are a positive sign....Jenny