When people have wronged me, yeah, I suppose I have.
With others, I have not wanted to stop hanging out largely for selfish reasons and eventually gotten doorslammed myself.
Just to have a convenient friend is no reason to hang out when you're really not very similar or on the same page at all.
I have also doorslammed because of my own insecurities that I couldn't face.
This is with girls who I had sort of hooked-up with but not completely.
It's not like they were strangers but I had difficulty facing them and so when we may have been quite close to even get together in the first, I would go back to zero immediately.
All my hangups too, never to do with the girls themselves really. Not specifically those people, anyway. Except once.
I've apologised for some of those as well, the ones I could at least. It sucks so badly to be treated like that but I was in such an egotistical phase I couldn't see how awful my behaviour was and I was surrounded by people who probably still don't think there was anything wrong with it. That's cool, but it was wrong for me. I do know better.
When it is because of my own issues is when it is just the shittiest thing to do to someone and I really hope I don't do it again.
It's a lacking in ability to face reality - cutting contact with people who push and push is fine to me but doing it to innocents (often unconsciously) to save face...is weak.
But, again, don't beat yourself up about it.
You can go back and change if you feel it shouldn't have been that way but it means being prepared for them to want nothing to do with you, even after you apologise.
That was fine by me because I wasn't doing it for me but so they can know that they did nothing wrong and not have it affect their other relationships hopefully.