Ever since SUNNY and you met, he always comes to you when he needs comfort. He won't say it directly, but you can always tell by his mannerisms. Just wait, and he'll come to you. Like a cat, in a way. Despite that, you were always there for him whenever he needed you most. This was especially one of those times.
You had come over to his house to check on him, due to the fact that you were just worried about him. Especially since you hadn't seen him in three years, and he was moving soon. Anyways, he has welcomed you with open arms the moment you had stopped by (though his expression didn't show it), but it felt the same way when you had first met.
Soon enough, it was nighttime. You had already planned to stay the night in hopes that he wouldn't mind, and it seemed that he wanted you to as well. It would be like a sleepover! You had gotten into your pajamas, and so had SUNNY. You continued to talk to SUNNY once you both got into bed, and you could feel him inch closer to you.
He rested his head on your shoulder, and held your hand in his own. SUNNY wasn't usually like this, but you didn't really seem to mind it. He was probably going through a lot, especially after MARI's passing, so you figured it wouldn't hurt if you could indulge in this for a little.