Why did I?

Why did I fall for him? He never treated me right. He never truely loved me. He never even liked me. I'm happy for what happened to my little brother because it saved me. Saved me from a never ending cycle of an unhealthy, unsavory, and inadequate relationship. No matter what happens to my little brother. I will save him. If it means donating my love. Donating my blood. To as far as donating my heart or dying for him. I love that kid. He will be in my heart no matter what. If we get in a fight, I will still love him. If he is being annoying, I will still love him. If he is ruining something of mine, I will still love him.