Quote from Lily in Last Forever
[24 hours after the wedding:] Marshall: What is the matter with you? How could you put us through that? That good-bye was emotionally devastating. A certain delicate flower cried all night in the shower. Lily: And I was pretty bummed, too. Marshall: And now you're staying because of some girl? I mean, who is this person? Ted: The bass player from the wedding band. Marshall: Oh, yeah, she's great. Lily: Love her. Right, right? Marshall: What are you... What are you doing? Calling her. Marshall: Don't do this. Don't call her the next day. You're blowing this. Three days. You wait three days, Ted. Lily: Oh, the three day rule is-is a childish, manipulative mind game. But yeah, you wait three days.