[Snaps away from his self-loathing at those words, turning to look at him, half-shocked that you would even bother to ask something like that. Hasn't he explained his thoughts about this to you enough times already?]
Why would you ask that, when you know it is?
[Because it means he went back on his word, on his decision to keep away, that he was too selfish and let something like that happen because of it, and now you cling to the false hope that it could still happen again, even when it must have been nothing more than a lapse of his judgement. He can't ruin your life, you have Himawari, you two are normal, you are humans, you're not meant to live for countless lifetimes. He's not living in the same world as you two are... he can't drag you away from the place and the people you belong with.]