"I can't do this with you anymore," she said, sobbing at this point. I hadn't even spoken a word since she started talking to me. "You're making this so difficult on me. I don't want to leave you, but maybe it's what's the best for us." "It's not the best for me," I told her softly. "You're the best thing that's ever happened to me." "I-I don't know what to tell you. I don't know what else I can do. You're a lost cause." Those four words broke me. They make me wish I tried harder, tried harder for her. In which Vincent is a drug addict, and Lucy is trying to help him give up his addiction.