What is why does my brother hate me?

It's painful when a sibling relationship is strained. There's rarely one single reason for such a complex emotion like hate, but here are some common contributing factors. Understanding these might help you identify the root of the issue.

It's important to remember that his feelings are valid, even if you don't understand them. If you want to improve the relationship, consider initiating a calm and respectful conversation (perhaps with the help of a family therapist if needed). Focus on listening to his perspective and acknowledging his feelings, even if you don't agree with them.