I see. [He's not sure why she's embarrassed. Perhaps it's because of the intimacy of the question? But it's only her duty to know. So...] Very well.

I am worried about the burden you've been saddled with. I am distraught that I was not able to prevent this from happening, and frustrated that it is beyond my power to do so.

But I am well. I am relieved to see that you are the same. I am hopeful that I can assist you in this world. And...

Most importantly, of all the people, of all the spirits that I could have met in this strange land, I am overjoyed that it is with my Ritsuka from Chaldea whom I share my fate. Never have I been so blessed.

[Yes. Surely this answer will suffice!]