Dear Xander, You’ve always been a lot closer to your mother than to me. It is a perfectly reasonable bias, admittedly; she is much more better-looking than I am, for one. And she does treat you better than I do on most occasions. I do envy your mother sometimes for the attention she receives from you. Perhaps it is because we spend so much time together, that I can’t help but use her as the superior parenting benchmark and wonder where I went wrong. One evening when I was giving you a shower, you taught me where I went wrong. I was just recovering from a gruelling bike training session…