Yesterday at the gym while I harnessed my ankle to a pulley system in order to torture my hamstrings and glutes, my attention wandered, as it often does, to the other people working out near me.  I saw a couple who appeared to be working out together, and I watched them take turns using a machine designed for upright rows. At one point, while the woman sat tall and engaged her rhomboids while pulling the handles back, the man tenderly caressed the top of her head.  Instantly my thoughts propelled me back to all the myriad times when my beloved tenderly caressed my poor brain tumor’d head. I nearly broke…