3yr old wedding jitters

Tonight at 9:10pm, Megan came out of her room and told me that she was having trouble sleeping. I asked why. She said, "because I'm wearing my white dress and I'm getting married tomorrow!". She said she and "Avalon" (her pretend friend - the name changes) were talking about it. Just now she came out of the room and told Rachel the same thing. This time, she said, "A boy and me are going to get married and we're going to dance".