#1926
Sat, 9th Apr '11 12:30:54 AM
Rarity is all about making a good impression. Remember, she wants to marry the princess' nephew (don't tell her Word Of God implies he doesn't exist...), so it's only natural that she'd want to look her best. Caught up in her romantic fantasies, it didn't sink in until after she arrived that 'Oh yeah, you eat and drink tea at a tea party'...' At which point she started a swift descent into panic mode.
As for Pinkie's antics...
Her Pinkie Sense/leaning on the fourth wall let her glean that Princess Celestia is a fellow prankster at heart?
...That, or she just has trouble restraining herself when it comes to a party. ANY party. Which may be Foreshadowing for "Party of One", if any of the fan theories about its content pan out.
I actually felt really sorry for Applejack, and wonder if Twilight's own paranoia got to her. She probably would've really enjoyed the party if she hadn't been freaking out about seeming 'proper'. At least the Cakes let her take some of the food home?
For me, the 'Forest = Banishment' and 'Diamond Dogs' Cell = Imprisonment' made sense. They're easy mental references based on the ponies' recent experiences, after all.