There could be several reasons for this, such as your mother having a different relationship or communication style with your brother, or she may perceive him as being more sensitive or in need of reassurance. It's important to remember that every parent-child relationship is unique, and your mother's behavior towards you and your brother may stem from individual dynamics between each of you. It's also possible that she may not realize how her behavior is affecting you, so open communication with her about your feelings could help address the issue.
