[Ruby has told him about how they lost their mother. Hayato has no idea why Aqua is bringing that up, though.]
Yes.
[Neither of them know his mother died while he was young, that having him ruined her bright musical future. He doesn't share that, though. It's irrelevant.]
no subject
Yes.
[Neither of them know his mother died while he was young, that having him ruined her bright musical future. He doesn't share that, though. It's irrelevant.]