My version (still wish Miku won)

Miku

*stands* bye

Yotsuba

Miku wait!

Fuutarou

I only fell for her because she was the girl that I found when I was a boy.

Itsuki

Onii-san, your timing is atrocious.

Miku

Yotsuba at least take good care of him

Yotsuba

I'm sorry, Miku. But I will

Miku

*starts walking Itsuki*

Itsuki

*hugs Miku*

Fuutarou

this is going to be a weird time. I just know it