Was he born between January 20 and February 18? If so, your friend is an Aquarius - a feisty intellectual who may seem more detached from his emotions than he really is. Aquariuses are known for being relatively logical in their thinking and can often forget to recognize the feelings of those around them.
If you're constantly offended by your Aquarius because it seems like he isn't listening to you or lending a helping hand when you're upset, this might be the reason.
However, Aquariuses have many redeeming qualities as well. For one, you can always expect your friend to be honest with you - even if it's a bit brutal at times. Aquariuses also tend to have eclectic personalities and a flair for fun. You'll never be bored if you decide to continue your friendship!
If you're interested in learning more about your friend's sign or your own, consider speaking to a psychic who specializes in astrology. A psychic chat online can clear up any questions you might have about Aquariuses.