If they never took responsibility for anything, no matter how calmly or clearly or often you raised it, there's a reason for that, and it has nothing to do with how you communicated.
You'll have tried everything. The gentle version, the direct version, the version where you waited until things were...
There's a conversation you can probably still replay in detail. You went into it with something specific to say, something that had hurt you, and you'd thought about how to say it fairly. Ten minutes later you were the one apologising. You were reassuring them, softening what you'd said, repairing a...
You rehearse it beforehand, working out how to frame it so it doesn't come across as something it isn't. You keep your voice level, say what you meant to say, and for a few exchanges it almost feels like it might go somewhere. Then, somehow, you are no longer talking about what you raised. You are e...