What made you cut off a friendship?

Giving constantly without receiving anything in return. Being taken for granted, to the point where I was expected to just “deal with” the way I was being treated and laughed off when I expressed concerns.

If there’s no mutual respect and effort, if it’s all one person doing all the work while the other gets to do and say whatever they want with no fear of consequences, that’s not a “friendship”. That’s the relationship between a parasite and its host.