Hello.
I am a sufferer of dysthemia, I am also a single (remarried) but single mom of one child.
I would recommend that you remove yourself fromt he situation if your husband is not willing to move in a positive direction, which will no doubt be best for your family and most importantly your child.
As a parent and an individual who goes through the ups and downs of depression daily, I can tell you that I have done much research on how my behavior/depression affects my little girl...Fi the option were out there I would rather her live with a parent or relative who were not in this state until I have it under wraps for her. That is not available to me.
If you yourself do not sufefr from the symptoms I woudl say that a healthy mother is better raising a child than an ill fatehr/mother duo...Unless your husband would be willing to make his recovery from depression a daily act.
I hope this isn't too harsh.
Taopaz