…You have one family member who’s just difficult and if given half a chance will walk all over you. And you finally stand up to them - maybe nothing much, even something as simple as “we don’t need to go over this again.” Predictably they explode in whatever fashion they are prone to. Especially if you haven’t stood up to them much before it’s a shock to everyone.
Now, that’s not the real hard part. The hard part is the peacemaker afterwards. This may be someone you have a very good relationship with. But whatever it is they just want to restore the peace, and they do this by appealing to you to be the reasonable one. Let it go, let the difficult person have their way (no matter how unfair this may be to you…
…the difficult person is upset and goes crying to the peacemaker about how hurt they are and they can’t believe you did that and won’t the peacemaker do something?
…every time I upset my mother [my father is] telling me how hurt she was and how could I do that. When I don’t feel like I’m doing anything wrong, just trying to set some appropriate boundaries. I get that she’s hurt, I feel bad that she’s hurt, but I can’t let that change my actions and still expect to stay sane. But I feel like for dad the problem to be fixed is that my mother’s upset, without any thought to what actually happened.
Don’t let the “good cop/bad cop” thing fool you. He may not realize it, but the “Peacemaker” is not making peace. He is trying to enforce the status quo. Do not buy it.
First of all, I might stop saying “I get that she is hurt.” You didn’t lower the boom in some shocking manner. You only resorted to the least violent means you had to convince her that you were not going to be intimidated. She is “hurt” because she has the unrealistic and unjust expectation that the world in general and your family’s world in particular revolve around what she wants. She is “hurt” because you wouldn’t back down.
If you set a boundary, she crosses it, she gets the shock of finding that her violation of your boundaries have gained some natural consequences now that you are old enough to defend yourself, and she runs to your father to get him to re-set the old situation where she violated your boundaries with impunity, of course she going to be upset. The question is whether her shock is a reason to go back to the old way of doing things.
I might try this. First, point out how the situation went, and what you did in order to convince her before you imposed your boundaries that you really meant it. Show that you did everything you could to resolve the matter in a peaceful way, to no avail. Point out that when peaceful people make your mother’s mistakes, and it comes to this, offer their own apology about the misunderstanding. They say, “I don’t like the way you did this, but I understand that I crossed a boundary, too. Let’s start this conversation over.” Then the two parties mend fences, the kind of fences that make good neighbors.
Then try saying something like this:
“I get it that Mom finds this new situation where I am a grown up who doesn’t allow her to do whatever she wants to be something difficult for her. When she had all the authority, she could be as unfair as she wanted, and no one stopped her. I get that she doesn’t want things to change, so she goes to you in the hopes that you’ll help her defend the old way of doing things. Nothing could be more predictable!”
“What I do not get is why you help her to do that. You admit that what she’s doing to me is wrong, that she is treating me unfairly. You wouldn’t expect anyone to accept the treatment I’m getting. So why did you just stand by and let her do it? Why have you never protected me, the person being wronged, instead of protecting her, the person doing the wrong? More to the point, now that I am old enough to put a stop to this myself, why are you trying to stop me? If you could stand back and watch her do as she pleased, why don’t you at least give me that courtesy? You are afraid she’ll be hurt and angry because I won’t let her treat me in an unfair manner. Why aren’t you afraid that I will be hurt and angry because she’s treating me badly and you not only do nothing to stop it but even try to talk me out of defending myself?”
“I get that she is difficult, and hard to be around when she is crossed. Fine. Don’t cross her. Just do not try to stop me when I stand up to her. Someone needs to stand up to her, and if it has to be me, so be it. If you aren’t going to help me, at least don’t make it harder for me. If you just let this go and don’t encourage her to think it shouldn’t change, maybe she’ll get used to the new normal a little sooner. I hope so, because I tell you this much: I am not going back to walking on eggshells and pretending that she has no obligation to respect my boundaries. Those days are over. With my way, she may actually stop treating me so badly. By your way, she never will.”
“The next time she says I’ve done something unjust to her, then come to me and talk to me. Take her part, if I’ve done her wrong. If she’s the one being unjust, though, leave me alone and let her take her consequences for the choices she’s making. That is only fair.”