From Time:

Moe and Tessie Rubenstein
Moe: "We've been married for 66 years. We met in high school when I was 16 years old and my wife was 15 years old. And we've gone through life together. The love we feel now is a different type of love. It is a mature love. In the beginning, of course, there was a sexual attraction but right now sex has very little to do with it. But we love each other very much. Everyday my wife expresses her love to me. Everyday she says, Did I tell you how much I love you today? Everyday. Everyday she says that."

Married for 50 Years: Love Ever After