You can easily gauge the love and affection in a couple's relationship, the same way you would calculate a person's age in dog years (minus the use of the 7- times table).
The way in which we display affection changing appearance with each passing year.
When your husband of 18 years leads you by the hand, into the kitchen, to show you the secret hiding place where he has placed two little chocolate bars, just for the two of you, where the kids will never find them?
That is the equal to , like, ten dozen roses arriving at your door step after your first date.
Love: As simple as dog-year math.