Hello, there!

I think if you held your brother's hand and had a peaceful and more importantly "private" talk, you can find out why he told you that. He might have had a different reason other than the one he told you, but he was afraid to share it because you then might feel really bad about it. However, I don't think you should feel betrayed, because it is a bigger word to use for these situations, which are still big situations regardless, and I don't think you're a narcissistic pathological liar, you're just afraid of being rejected And, I think that your brother told you not to write the book because he's more worried about your feelings than your parents'!

If you were selfish, I don't think you'd feel bad about what happened, and then actually share with us what bothered you