Actually, I suggested the same thing to Anise, but she doesn't think Arietta is even capable of upholding such a thing. She isn't even willing to try...

[There's little point in hiding their identities, given Ion isn't even sure if Toph knows either them. She may be familiar with the name Anise, since Ion has probably mentioned her before as someone who lives in the same house as him.]

[In truth, he's probably more upset about the argument than anything.]

...and that was the last time I spoke with her. She left for a mission the next morning, and she's been gone since.