You said you wanted to protect me and be my scabbard.
Then, I said: "Then I will reluctantly be your sword."
"Well..." Looking at your disappointed look, I shook my head happily and stuck out my tongue at you.
I won't say that super embarrassing thing to you:
I like you, I like you very much. (Private はあなたがきで, private はあなたがとてもきです.)