Mullin added: “What I am, though, is scared. For him, not me. Not knowing how it affects him is what I hate. Does it affect him? Does it not? Does he care? Does he not? I’m constantly trying to get inside his head and sometimes I just hit the wall. It’s as if my own head has split open and a flood of emotion has come pouring out. If one week he isn’t as vocal as the one before, I’ll feel a massive weight of guilt – it’s my fault. Those emotional episodes are necessary in a way, because when I wake up the next day I feel ready to go again. The other side of me is back – I’m on the train again. My focus is there, and it’s a positive focus. ‘You’re being stupid,’ I tell myself. ‘You spend so much time with him that you do know how he works. You know what’s inside his head.’”