IN SICKNESS AND IN HEALTH. TIL DEATH DO YOU PART. THESE WORDS, ALWAYS SOLEMN, ARE VERY DIFFERENT DEPENDING ON WHEN YOU UTTER THEM TO YOUR PARTNER: IN YOUTH, WHEN YOU ARE UN- OR LESS-TRIED? OR LATER, PERHAPS MUCH LATER, AFTER LIFE HAS BEATEN YOU UP A FEW TIMES? THIS IS MY HEARTFELT VALENTINE TO LATE-LIFE…