she gave me a spare key last month when she asked me to look after her little dog while she flew to vegas for the weekend . she 'd seen it a number of times since she 'd met him . i think we 're back to you being out of your mind . '' they 're kind of different , in case you did n't notice . she found she was rubbing the tip of her thumb slowly across her lower lip , and stopped herself . through all my grief and confusion i realized something else . 