Arthur could see the gang was falling apart, Dutch was crazy, people seemed to be dying and leaving left and right. The gang was no safe place anymore. Apart of him wanted to leave too, but due to his history with the gang he felt bound by his duty to stay till the end. But he still had his lover--they weren't sick and they could still get out of this alive, so one cold and chilling night he calls them over to walk with him, explaining all about his sickness and pleading with them to get out.