Hi people,

A topic currently in my mind - controlling people.
I have dealt with various people who would be controlling overtime.
I learned the hard way through a close friend I had - overtime he became less of a friend and more of a controller. He made me so angry and made me feel so horrible I shut off the relationship cold-turkey by deleting him off Facebook to mark that it's over, since he's not the kind of person you can reason with.

It's interesting yet also disappointing that some of those controllers were once great friends. It feels to me that noticing a controlling behavior is like taking a saturated earth, spoiling it and then result with nothing but the skeletal of a relationship which held it in its place.

The issue is I am uncertain of my way to deal with controlling people.
From my experience, it's pretty much go into my control room --> relationship section --> select relationship --> lower power/shut down. The thing is, it feels they're gonna reach "shut down".
I'm having an increasingly lowering tolerance to controlling behaviors, or people who show power or put you down.

I just wonder if it's even worth dealing with those kind of people.
I am also unsure whether I'm over-reactive to controlling people, as most of them are fun to be with, but that's pretty much of that. Talking about personal issues has resulted in them hurting me.

So TL;DR - How do you deal with controlling people?
How much is shutting them off the right thing to do, considering the fact that I have no tolerance to further and further point my fingers on specific wrong behaviors on and on... It's just that it gets you thinking that you're losing a quantity of relationships overtime.