Only the fact that you've been thoroughly vetted and were vouched for by several of her friends got Shion to accept you as her roommate, and even then it took some time before she let her guard down around you, but gradually she stopped only doing as she pleased and started listening to what you had to say
The two of you have settled into a slow-paced but comfy life, exchanging harmless barbs and enjoying one another's company, playing video games and engaging in the occasional minor squabble
You've cheered her on from afar during her concerts, given her privacy and quiet while she streams from her room, and taken care to wake her up when she's in danger over oversleeping- which had become quite the trend prior to you entering her life
Shion notices you looking at her and raises an eyebrow