Dee is, as usual.......
Spot on, on the ball, and kind of summed it up in a nutshell.
Well done on 6 months.
Really, really, well done.
Marriage counselling maybe?
He might be afraid he will loose "The new improved, fabulous you".
Seriously, he, (not Dee)
your husband might be feeling insecure.
Talk to him.
What does your therapist say?
The therapist would know the dynamics better than us.