Hrrrmmm, I'm sure this is insightful somehow
Rin wasn't quite sure what to make of Kakashi's new attitude. So instead of trying to question it, she just went with it. Kakashi was attempting to connect for the first time since their team was formed. She was excited, in all honesty, to finally be able to connect with him.
She admired him, and the fact that he graduated so many years younger than she did amplify that.
His cool demeanor, the way he seemed so unshakable on missions, so efficient too. Rin, while she had an almost single-focused mind on medical ninjutsu, struggled to keep her composure sometimes.
Despite her admiration for Kakashi, she also wished to get to know him better. His cool demeanor was admirable, yet terribly isolating. She wanted to be his teammate. She wanted to be his friend. She wanted, most of all, to be equal with her teammates.
She knew it wasn't intentional, but she often felt left out by them. Obito was kind, and a good friend but his constant spats with Kakashi forced her to be the peacekeeper. As much as Rin admired Kakashi, and as much as she cared for Obito, Rin was getting fed up with both of them. But, with Kakashi reaching out to them maybe things might finally change.
The day Kakashi took them to his house was a quiet one. There was no one there to greet them, only a steady silence. It made Rin....a little off balance. She's not quite sure what she expected. Obito shared a glance at her.
It was....melancholy in this house.
Obito and Rin both did their best to fill the silence of the house, keeping a consistent dialog going. To their shared surprise Kakashi chimed in, mostly jabs at Obito, but still.
They had all made dinner together once Kakashi realized he didn't have a clue what to do. It was nice. Almost domestic.
(Until Obito tackled Kakashi and created a huge mess.)
(.......and Rin accidentally set fire to the stove..)
The food was...inedible.
They just went out to the ramen stall instead.
Rin heard a quiet sniffle, turning her head she was greeted with a peculiar sight. Kakashi was tearing up over ramen? Is Obito seeing this? She turned away and rubbed her eyes and turned back. Kakashi was still almost crying, over ramen of all things. Her chest felt heavy.
Was Kakashi okay? How was he doing at home? Is he...always this sad? Rin frowned, she had to do something. They were teammates and hopefully one day soon, friends.
Rin bumped his shoulder and kept it there. She turned back to her ramen.