answer: #Person1# and #Person2# are talking about Leo and the young woman walking with him. They think Leo is dating.
documents: #Person1#: Hey, there's Leo. I wonder why he's walking arm in arm with that young woman.
  #Person2#: It's as plain as the nose on your face. They're dating each other.
  #Person1#: You're pulling my leg! She must be thirty years younger than Leo. Talk about robbing the cradle!
  #Person2#: Well, you can bet this relationship's going to be a flash in the pan.
  #Person1#: It must have been love at first sight because I know he didn't have a girlfriend last week.
  #Person2#: I think you are absolutely right. Actually, my father proposed to my mother after knowing her only two weeks. They got married a month later.