I'm glad you have had a chance to read a few posts. From them you will probably see how much pressure falls on those like you who have to care long term for a partner with depression and anxiety.
My wife was faced with this and found it most difficult, knowing what to expect, how best to handle it, and not getting dragged right down by it all. She did have her mum on hand to help, which made a lot of difference, plus she was in contact with my doctor too.
So the first thing to ask is what sort of support do you have? Do you have a mum too to help, or anyone else you can talk with? Being isolated and feeling lost is horrible, getting care and perspective from another is realy helpful. Perhaps your councilor will fill that role.
Now with you husband. I can relate to how he feels. When depression is on the up I have not been able to feel love - or even know if I was capable of it. I've thought I was a waste of space and believed that there was simply no point trying.
From the outside it would appear as if I did not want help or to improve or anything. And it is very hurtful to be told one is not loved, and frustrating to hear it is not worth trying anything when one has spent so long being supportive and caring.
All I can say is in my own case it is the depression talking, the love was still there and come out when things improved. Then I've really tried to show it and make up for the dark times.
Having had treatment and tried various medications over the years is frustrating and discouraging. I was in this situation for a very long time until I came on my current regime which has been working well long-term. I can only suggest you encourage you husband to keep plugging away, and if his psychologist clashes or seems to be unhelpful to try another.
I do hope things improve quickly or that at least you can set up some boundaries to protect yourself. Please come here as often as you would like, you will be welcome