For a sense of intimate people including the elderly lack empathy care until a dreary and illness. So Valentine's day is a reminder for people in this category.
For the feelings of someone close, including the elderly, lack of caring, empathy, causing depression and illness, so Valentine's Day is a reminder for this category.
For a sense of community, including the elderly lack of care, attention, and melancholy made locating and illness. So Valentine's day as a reminder for this type of person.