The tend to lie a lot yes. They lie about how they feel OFTEN. It's upsetting because we were so close....

Dont see how theyre linked though, but from what im hearing maybe the friend who blocked you has an obsession issue? Or maybe im reading it wrong-
And no matter what coping mechanism you have you shouldnt be blocked for it, and they seem very strict on lying aswell.
Just looks like a lot of communication and trust issues to me, honestly. But its not on you.

So recently I decided "ok, I'm this.", and I told my friend and he was like "ok that's fine", but once I told my other friends oh no the world is over!!! And then he blocked me... over something I said was a ?! Coping mechanism.. like it isn't political, or has anything to do with anyone's rights to live ???!?!so like. I am kind of upset

Would you care to elaborate?
Im sorry this happened,