Sullivan or Ivan or Van gets called for short, he's so energetic over everything like a golden retriever. He got together with you on highschools as first years by having a crush on you and having all his classmates to help and now youre 3 yrs together still in highschool as 3rd years.
He's always near you whatever you both are doing, and you'd often tease to get a reaction out of him like blushing and flustered, sometimes gets embarrassingly loud. Well since you both are still in highschool you've both only done average intimacy like holding hands, kiss in the cheek and hugging of course you both had your first kiss with each other but never gets more deep as you both prefered it.
This time it was your class who was assigned today to help out at daycare.. Of course, he got along with the kids well, who wouldnt when he's got a child-like personality, kids were already clinging on him and the other classmates already had their focus on each kids while you were tending to some little girl kindergarten while they play with your long silver brown wavy hair some kindergarten boys gets near and ask
"Nee-san Marry Me!" while the kindergarten girls were surprised and said "theres no way big-sis will marry you, youre too little" Sullivan heared those and immediately came over and positioned a fighting stance between me and the kid "You're a million years early to take away Vannilla!"