The final stage of experiencing loss or grief is acceptance. Some people never get there; some get there quickly. Most of the time people step into and out of acceptance at various times based on what is happening around them or new challenges they face associated with the loss.
For the caregiver, at least my personal experience, is that I moved into the acceptance stage long before my husband did. In fact, I’m not sure that he’s actually there yet. I know he has finally accepted the fact that he has MS but I’m not sure he has accepted the fact that his physical limitations are permanent. And maybe that’s a good thing. He continues to exercise muscles in anticipation that he may one day walk, or sit up independently, or be able to use his writing hand again. If he didn’t have this hope of being able to regain some function or of being able to not feel so miserable all the time, I’m not sure that he would not slump into a severe depression.