If I always had problems with certain types of people I'd see that as a red flag and would probably discuss it with my therapist.

What caused the breakup in your friendship; sounds like that might have something to do with all this? Most of my former friends and I were that way because we moved, changed jobs, drifted apart, etc. If there was a disagreement it generally stopped all interaction, didn't escalated into something hurtful like it sounds like you have.