Do I have a right to be upset about this?

I don't know, man, I just don't know.
Cry, that always works.

There's no good reason u should be mad anyway because I don't know the full story on how both things happened.

i wouldn't say u would of wouldn't have the RIGHT to be mad. but happy birthday!

Sunday is my b-day... and chances are i'll be spending alone, of with u guys ;_;

Yes u have the right to be mad.
No u don't have the right to be mad.
I don't know.
Eat cookie.
Hug someone.
Spray Windex.
Solves everything.

I think u should be upset honestly. I know I would. door the way happy birthday. I had a birthday just yesterday.

First Happy Birthday!!!
u have a right to your feelings. Before u decided to be angry at your friend, do u know what he was thinking? Did he know it was your birthday?
My suggestion is to talk him about what happened and how it made u feel. u may think it's obvious, but some guys are slow on picking up such things.
Remember, just getting mad will hurt u meer than him.