Alice Munro 
Comfort (Storycuts) 

When her sick husband carries out a long-agreed-upon plan in her absence, Nina is unable to deny shock and grief from taking hold. This story recounts the married life of the couple, the aftermath of a death, and the stubbornness present in both.
Part of the Storycuts series, this short story was originally published in the collection Hateship, Friendship, Courtship, Loveship, Marriage.