"She had a tremendous amount of love for him. In the early days, they could not bear being apart. Witness his service in Vietnam, when she could barely come to grips with his absence," he said.
In 2002, during an interview with CNN's Larry King, Al Gore hinted at previous troubles the couple had and overcame.
"Well, we fell in love, and we've stayed in love, and we've worked very hard when there were hard times to work it out, and not that we ever thought about divorcing or anything like that. I don't mean to imply that. I mean that I think people need to work it out," he said.
The couple recently purchased an $8.8 million mansion in California, suggesting to some that they were seeking separate residences. Currently the couple live in Tennessee.
The couple met in high school, at a party after the senior prom, and they married at the National Cathedral in Washington on May 19, 1970. They have four adult children.