A painful truth is that sometimes conflicts arise or relationships end because people can’t see what they’ve done that hurt you. And they walk away blaming you, or projecting onto you. We cannot convince people of what they don’t see/face. Sometimes letting go is our only option.
A narcissist wants to convince you that your reactions to their actions are the problem when, when actuality without their actions, there would be no reactions.
Unhealed trauma will sometimes give you a high tolerance threshold to abusive behaviour. Just because you can handle it doesn't mean you have to tolerate it.