Maybe...

Your husband doesn't actually think that badly of you.

I mean... He married you after all.

I'm sorry that he hurt you with a comment a while back now.

But maybe marriage councelling will turn out to be more useful than you suppose.

I think that individual therapy is important too.

Seems to me that yeah, you exceeded what your therapist could offer. That doesn't mean you failed. I think it is Linehan that says that clients don't fail... It is that the therapy fails them.