what kageyama really means:
hinata, i am quite socially inept and it's difficult for me to successfully show my feelings and respect for you, largely because of my behavior in junior high and how it affected me. however, you were arguably the first person at karasuno to put your trust into me and that has had a lasting effect on our relationship. i cannot communicate how much i appreciate you and how much you have helped me become a better setter, teammate, and person, but the use of this word is the best i can do. though you make a countless amount of errors and you can sometimes be too energetic, loud, and unnaturally confident, you astound me with your natural reflexes, speed, stamina, and jump. whenever you make a mistake and waste your talent, it makes me upset because i know you are capable of so much more. i have a unique relationship with you, unlike any of our other teammates, because you have truly helped me feel comfortable and realize that i should just accept who i am. i often have strong feelings of dislike towards you, but i love you for who you are and i would never change any aspect of you, even when you fumble a receive or miss a block. you really are one of the dumbest people i have ever met, but i wouldn't change it for the world.