Yeah, different people use Facebook for different reasons. I mostly use it as a social and environmental justice platform and rarely if ever post pictures of myself on there. In fact, the only pictures that ever really get posted on there of me are ones that are taken with me and my wife, and then she's the one that posts them. She knows not to tag me.
What I find interesting about Facebook is that even people I know very well in person are different on there. There are some people that I care about very dearly - friends that are more like family - but they are so dramatic on Facebook with cryptic updates and whatnot that if they were like that in real life we would not be friends.
I'm glad that releasing those people as Facebook friends brought you relief. I think that's great. And I hope you continue to get the relief and healing you seek. Having a major mental health episode can be frightening enough without being alienated by those closest to you. I have had to rebuild my life a couple of times because of mental health stuff. The first time I was 17, and it was my second family, and the people I got high with every day. The second time was in sobriety, around my 3 year sobriety celebration, and even then people didn't know how to deal with it.
In the end, my path is my own. The ones who stick around and don't get weirded out by my experience, but who also aren't afraid to acknowledge it, are the ones who get my time.
I wish you all the best.