I came to that realisation a few months before the lockdowns, so I was in the lucky position that my life didn't change very much at all - instead of being isol

I came to that realisation a few months before the lockdowns, so I was in the lucky position that my life didn't change very much at all - instead of being isolated at work, I was isolated at home and didn't have to put on a happy face. One of the case studies that led me to the same conclusions as you was somebody that I had been helping regularly for years just casually mentioned how she wasn't spending time with one of her friends anymore because he was depressed. Many others treated me like a professional supplier of several services, but only ever hung out with me when they really had nothing else going on. Nowadays I only put up with people asking for emotional support (or any support really) if we made some good memories together in the last three months. If they chose to spend their time with others all this time, then they might as well go ask them for help.