As a piece of trivia, the original script actually called for Han to reply, “I love you, too.” However, Harrison Ford didn’t feel that Han, the swashbuckling, fearless bad boy, would ever say something so mushy. So he came up with “I know” on the spot, and romantic history was made.
Of course, as a seven-year-old boy, I wasn’t aware of this subtext. I wasn’t aware of the attitude that Han’s response represented. I just figured that he was expressing love the way men are supposed to express love.