Bobby's frown deepened and he crossed the room to sit down next to John, reaching out to rest a hand on his leg. "You don't have to apologize, baby. Do you want to tell me about it?" He wasn't sure he wanted to hear about it, but--the mutants Em had known in another universe, they weren't them. Curiosity about their counterparts was natural, but at the end of the day, the experiences they'd lived were clearly very different in that other world.