Of course, you never really forget anyone, but you certainly release them. You stop allowing their history to have any meaning for you today. You let them change their haircut, let them move, let them fall in love again. And when you see this person you have let go, you realize that there is no reason to be sad. The person you knew exists somewhere, but you are separated by too much time to reach them again.
A long distance relationship
means learning to kiss with your words,
hold with your gaze
and touch with your prayers.