でも「捨てちゃうよ！」って言うと　　「！！！！！！Σ(´Д｀；)　」ってなる。　こだまでしょうか。

But if I tell her, "I'll throw it away!" she goes all "！！！！！！Σ(´Д｀；)" Is this some kind of echo? Seems to parody "an AC Japan commercial":https://www.youtube.com/watch?v=A7g9q2NI5WE.