[rin marches up to the couch, but she stops in place once she hears that. her mouth is agape. blatant but innocent surprise is obvious on her face.

she may have not been thinking of this point before, so archer's good to voice it.

but... seriously? dear god, every emiya is incredibly daft. she's the one who advised him to stop whipping out swords and start chilling out, and here he's saying his fee-fees are hurt because gilgamesh keeps kicking sand on him in the sandbox and he won't be happy until the teacher makes them both behave?]

Do you think he considers himself "at war" with you?

[no, really.]

He's probably trying to put the moves on his Master right after being a perverted creep where we can see him. That guy doesn't care about anything.