There's a video online of a little girl named Christina telling a boy named Owen that she's planning to marry him when they grow up. They're both about five years old.  But he starts screaming "No" over and over and then he starts crying.

Even though he keeps screaming at her and freaking out, the little girl won't give up:  She just keeps insisting they WILL get married someday.

By the end of it, the little boy refuses to even look at her...but she keeps getting in his face.  And it ends with him still crying while she tells him, quote, "You're GOING to marry me."