I bet he can't even remember what it is he may have been mad at you as children.

You sound upset, confused - and more than hurt. As with all things in life, I try to keep away from the source of negative feelings. Yes, it may be that you miss out on family events etc. But if its something like a b'day, perhaps your close family could take turns in inviting you and him, so never at the same event.

As for his emails - delete them all. See if you can block is email address, so it goes straight into the spam folder. Then you'll not see them, unless check. Or change your email address? And I would stop telling him anything concerning the family via email so he has nothing to be sent back to you.

It will be hard at first, but speaking from experience, it does get easier as time goes on. Start caring less = stops hurting so much.

Oh - and why were you in his room? Do you live together?