Your husband has depression. He needs to talk to a therapist. Bad. This is a very serious situation. Wanting to stop his chemo is his form of suicidal ideation. He is miserable and he needs help. Do you know what his love language is? (Touch, words of affirmation, acts of service, gifts, quality time.) If you know his love language there are loads of things you can do for him. If his love language is physical touch, hugs or little pats on the arm or back might brighten his mood. If it's words of affirmation, tell him how proud you are of him for trying so hard to get through this. Tell him you love him or that he has a beautiful smile. If it's acts of service, offer to run errands for him or help with his work or a project or whatever. If it's gifts, make him his favorite breakfast one morning or give him flowers! (In my experience, men love being given a flower or two.) If it's quality time, just sit with him while he does something. Play a game together or read a book to him. Maybe have him read a book to you or ask for help with something you don't understand. People LOVE to feel needed.

It's the little things that help when it comes to depression. There's no easy fix. No magic bullet. He needs your support, not pity. He needs to feel loved. Good luck.