Quote from Robin in Something Old
Robin: Long story short, I promised my future self the locket would be my "something old" at my wedding. What? Ted: No, I just like that there was ever a version of you who imagined having a "something old" at your wedding. Robin Scherbatsky, you're a girl. Robin: Shut up. You're a girl. Ted: That's been established. The new information here is that you're a girl. Wait... is that...? Robin: Oh, my God, I found it.