Spike, now aware of Smolders interests in tea parties, decided to take her to a private place where no dragon or pony can judge her.
Obviously, Spike is no stranger to tea parties or picnics.
Though Ocellus may not have mentioned the specific quote “I like cute, silly stuff” that came from Smolders lips.
Probably for the best as Spike may find out eventually as Smolder gets used to expressing and experiencing this softer side of her around him.
Leave it to two warm blooded dragons to leave such a heartwarming moment.