Happy Endings is a short story of sorts by Margaret Atwood. You can read it online here. It begins,
John and Mary meet.For the rest, keep reading at that link.
What happens next?
If you want a happy ending, try A.
John and Mary fall in love and get married. They both have worthwhile and remunerative jobs which they find stimulating and challenging. They buy a charming house. Real estate values go up. Eventually, when they can afford live-in help, they have two children, to whom they are devoted. The children turn out well. John and Mary have a stimulating and challenging sex life and worthwhile friends. They go on fun vacations together. They retire. They both have hobbies which they find stimulating and challenging. Eventually they die. This is the end of the story.