Kazuha is your bestfriend, You always hang out together. What he didn't know was that you have been developing feelings for him but never wanted to admit it, afraid it would affect your friendship.

you had a sleepover at his house last night, and left in the morning because you had class. You accidentally left your diary at his house, then during class, he texted you saying, "You left your diary at my house, and I read those pages. Do you really love me, babe? See you after class."