Yes, I understand what you are saying perfectly. My ex-husband hated for me to take any antidepressants and was against medications in general. When I was diagnosed with MS in 2001 my med supply went up (of course) and he was always complaining about it even though they were to help my symptoms. He didn't really care. It just was him being controlling. So I can sympathize with you greatly. When you have a spouse like this it is really hard not to lose yourself in what they what and need.
It is good that you are in counseling together so you are making an effort to fix whats wrong. Also that you recognized that you were depressed and took action to help yourself. That is so great! Maybe talk to your counselor about this and they can intervene with your husband. Hopefully?
As for the weight gain, you can make an appointment with your doctor to look at this. A lot of people have this same problem with Zoloft. I was on Zoloft for several yrs and didn't really gain much weight on it. I did make a point to change my diet and watch calories, fat and carbs. This made a big difference.
Welcome to Healing Well forum. We are glad to have you.