[His brows furrow, as if she's just tossed a riddle his way.]

W- b- Because... because I'm here...?

[He's not sure how it wouldn't be his fault, his responsibility, if she got sick now. He could've done something and didn't. That makes it objectively his fault. It also makes him feel anxious and vaguely ill himself just thinking about it.

Probably best to just let that go for the moment. He sees her flush-- and it's cute, but it also does a good job of bracing him for the answer.

He doesn't laugh. There's a pang of envy he swallows down. Then he smiles, speaking softer.]

That's a pretty cool thing to have. A lot of people can't stand their parents.

[Or the other way around, or--]

So, you talk with her?