a bickering-like-siblings roommate situation sounds perfect! she has three siblings, so she is plenty used to sibling bickering, though with the roommate part of it, that is far less tread territory. she will break you out of that shell, shinyuri kihyun, even if it ticks you off while she is doing it! she is nothing if not confident, so it can be both an abrasive and helpful thing this joint regard.