[She knows that. Guess she and Saber will include Shirou being happy into their own happiness too and then it works just fine with some logic.]

Is that what you'd prefer this to be?

[That's just teasing. After that Rin's still smiling but it's a genuinely happy smile this time.]

No, I would never joke about my girlfriend like that. Saber belongs to me and you belong to me. We all want her to stay around, so you'll assist me and my mana in making sure that she doesn't have to leave and all three of us are together.

[It's her flawless plan for getting to be with both of them. You're so very welcome, Shirou.]