I was the "good" daughter, and my sister was the rebel growing up. While my sister and I are very different people, we are extremely close and talk almost daily. Our biggest bond is the fact that we agree how screwed up our upbringing was and we consider ourselves lucky that we had each other. If either of us had been onlies, I am not sure we would have survived in the ways that we have survived and even thrived as adults. I learned that personality disordered parents have to "split" their kids so that they can project everything they like about themselves on to one kid and everything that they don't like onto another child, even though we are all individuals and this is so wrong! My mother is extremely jealous of my sister and my relationship.