Former President Jimmy Carter has been married to his wife Rosalynn for 67 years, but they were always ahead of the times, even back in the day.
When Jimmy was a Naval officer in the 1940s, he used the abbreviation for his love. He tells People what those five letters mean, "I love you the goodest. That's what my mother and daddy used to say back and forth, and I picked it up with Rosa."
The message took off with his family, as he says, "Now all our children do the same thing—ILYTG on the phone or in emails. They generally just put the initials." But even Jimmy is not safe from acronym confusion, "And sometimes they change the initials and make you guess what they're talking about."
You can see the "ILYTG" letters on a compact that Jimmy gave to Rosalynn at the Jimmy Carter Presidential Library and Museum in Atlanta.
Meet another adorable couple in the video below. They are being considered the coolest in professional sports.