Bobby was too cold. Not just physically, but emotionally too. He never wanted to talk about their relationship, but would crawl into bed with John every night, kissing him hard and initiating things he'd never admit to in morning light. He was devoted to Rogue during the day and fucking John every night. In a way, John got it. He couldn't have a physical relationship with Rogue, so he got what he needed from John. But John didn't particularly care for the fact that he was being used, and every time he tried to tell Bobby that, Bobby turned away.