02/09/2012 01:18 pm ET

Till Death (or Illness Or Dementia) Us Do Part?

When the person you married goes through a dramatic change, what's a spouse to do? As Valentine's Day approaches, clergy, ethicists and brain injury experts agree: There are no easy answers. When a couple is faced with the sudden or gradual change in the person who now may no longer be able to give flowers or go out to the movies, it often means a new definition of love.

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