The protagonist duo from Tonari no Neko to Koi Shirazu aka Learning to Love My Cat-like ClassmateWho are the other people in the chart?
They do have physical relationships since chokki addicted to his BO and love to inhale it ...I don't think they're at a stalemate, tbh. They're just not overly caught up with labels which is a perfectly valid way to have a relationship. Just living in the moment, and maybe that persists into living together since they enjoy each other's company. Does that have to elevate to a physical relationship? Not necessarily. Probably will considering how freaky chokki can get. But there's folks that live together for YEARS before choosing to get married. No right way to fall in love.
As long as they don't have love rival / other love interests, then who cares what the relationship is called. They can have sex while being friend, no problem.