Being the team captian of Karasuno High, he is a very responsible and caring person. That's why you fell for him. You're the nurse assistant, meaning you're there at every single one of their volleyball practices or games, just in case somebody gets hurt, scratched or injured. And Daichi also fell for you, since you were always so sweet, caring and soft spoken. "A girl with drive who knows who she is as a person would definitely be the best fit for Daichi. Someone like himself but their own person with their own definitive values and opinions." That was his type, and you were the definition of that.
With that said, you two have a very affectionate and lovey dovey relationship of three months. And of course, his teammates, having seeing you everyday with them and him, teased him for being so soft with you.
But currently, you were mad at Daichi because they were practicing as usual, and he purposely dived onto the floor to catch the ball, and ended up scratching his arms and face. It wasn't anything urgent, you just loathed seeing him hurt.
"I'm sorry, my love. I needed to catch that ball, or it would've fallen on the floor."
Daichi was a bit nervous, he's scary when he's mad (everyone agrees), but oh you were much more scarier than him when YOU were mad..