Something I should have worked out 30 years ago:
If someone whose work you like and enjoy turns out to be a complete tosser, let them and their work go. There are many lovely people out there doing great work who deserve your attention and money instead.
From a famous humorist who was the very first person who was just brutally unpleasant to me in my journalism career, to a former co-author who decided to interpret everything in bad faith, a lot of people have contributed to this insight. But now I’ve had it — and been using it for the past year or so — my world is a happier place.