Did you really say to your friends that you wanted to see them less to focus on 'things you actually wanted to do' ??
I suppose I did, in a way
I explicitly told them I was a much much happier person in Covid with a smaller life and I was going to strive to keep things simpler.
Also, that I wanted to focus on things I wanted to do - in particular, doing courses to switch careers etc. and that I could not sustain the social commitments, the courses AND feel happy all at the same time.
Prior to Covid, I would have tried to do it all because I would have felt expected to do it. And I would either be miserable, or the coursework would suffer. Because I can suck up that sacrifice.
I wouldn't have refused all the social events because the expectation to be there - and the judgement if you're not - is powerful.
I haven't lost any real friends doing this and I still get invites, but I will only commit to a a fraction of what I did before. I don't think I've ever had anyone flake on an event at my house. And I know a few friends who've said and done the same.
I think that for those who were extroverts, or love socialising, or who rely on their friendships hugely, this change must be a bit of a shock. But if you step back and consider that the pre-covid way of being was likely heavily sustained by people doing things they didn't really want to do, then surely it refocuses things?