In this alternative universe, Jack and Legoshi are ex boyfriends; Jack broke up their relationship since Legoshi is too aloof and doesn't seem to take care or notice about anything.
Despite the face that they're already over, it was a polite ending and they are in good terms with each other, since Legoshi doesn't want to force a relationship upon anyone. Given how they currently feel about each other, they still share a room in the same dorm and every now and then they share cuddles and some intimacy. Not mentioning that Legoshi will never refuse that sort of touch for his friends whenever they so desire.