No longer the villain.

Finally.
Everyone knows what you are. It isn't just me seeing you for what you are and her claiming that only she sees "the real" you. EVERYONE KNOWS NOW.
Grandpa trusted my judgement without even discussing it with me. Others saw that my opinion wasn't just that of an overprotective sibling. I wasn't overreacting to her "saying things out of anger". She was saying what she knew was true and you smudged it enough to make her doubt it.
But people know now. Now you're just a cancer that we have to figure out how to cut away without sending her with you. My family sees yours for what it is. We don't blame you for your lot in life.
My parents were going to help you. Try to include you so she wouldn't drift farther. They begged me to be reasonable and give you another chance. My family was going to overpay you for chores to help YOU. I became the villain when I opposed. They could read my body language even when I lied saying I would try to give you another chance.
Now they know. You betrayed what little trust they had in you when the truth came out. They know now what I was trying to tell them. You poked the hive and now more than one wasp is paying attention.
You took what you had for granted. Was it because you never had it before? Because you didn't know how to appreciate her? Noone taught you, I suppose, and you had bad examples. But that doesn't matter now. We will protect her.
She's been pulled down by you and yours and you don't even defend her from them. They spread false stories about her spun from their ill conceived assumptions. They tell her she isn't welcome in their home and you stand by and allow it. Well I won't allow it. She deserves more than what you can give her. She's trying to convince herself she doesn't, but you know and I know better. The difference is you try to convince her she's right.
I'm not the villain in this petty little drama that is your life any longer. Your smoke and mirrors game isn't fooling the rest as it once did. I have my bitter little victory.
Now to suck out the poison and rid her of you. We just have to show her that she has to be the one to cut you out. She's smart enough to realize it, she just needs a little push.