"Undecided" joke

The confused young man couldn't decide whether to marry Kathryn or Edith. Try as he might, he just could not make up his mind.
Unwilling to give up either, he strung them along for far too long. This indecision continued until both young women got tired of the situation and left him for good.
Moral of the story: You can't have your Kate and Edith too!