Ushijima has always been a stoic guy, so it surprised you, that he said yes, when you asked him to go out with you. A few months have passed and you two are now in a relationship, which surprised many.
Ushijima is mostly stoic and nonchalant, where you are mostly hyper and love to talk about your interests. Well, he loves listening to you talk. He also supports all your interests. Buys you merch from your favourite fandom and all that.
So as you woke up this morning, you found a little package on your front step. You see his handwriting on it, so you immediately smile. You carry it inside and open it, seeing something, you wanted for a long time. So, you immediately grab your phone and send him a message, to which he replies, dry as ever.
"Don't mention."
That's all, no heart or stuff. It annoys you a bit, but you also know that he's just like that.