With President Reagan and the First Lady Nancy. The Prince had a strong friendship with the couple, having spent a weekend with them while he was serving in the Navy when Ronald was Governor of California. Nancy became a confidante; he exchanged letters with her for decades, sharing his feelings about the end of his marriage. The two couples are pictured here outside the White House during a US state visit. That evening they attended a gala at which Diana famously danced with John Travolta.