Daiki always has a spare jersey for you in his locker if you ever need something to change into.
Whenever he wants to nap he'd lay on your lap and tell you to run your hands through his hair
It's very rare that he gets nervous before matches but if he does get nervous he'd squeeze you hand tightly before the match begins
He always looks at you while playing. He waits for your reactions and the He loves it when you cheer for him.
He always takes you to the street markets for dates and would get you some of the best streetfood there.
Nsfw part, Neck kisses and hickeys are Daiki's love languages.
Loves using his tongue and is very good at it
So he does do the jealous sex thing but he doesn't hurt you, he kind of just reminds you that you're his~
Fingerings while licking his SO's nipples is his go to foreplay (God bless you-)
To summarize your relationship: you're his best miracle <3