Many NTs report a large vocabulary but become tired quickly when they read. Dyslexia comes in many forms and there is no single cause. Some people have problems decoding letters. Some people have trouble listening or speaking languages. Trouble getting along with friends.
Some temperaments are especially prone to have peer problems.
Try using a camcorder to tape your child with his friends and then play back his behavior so he can see it. These kids need constant reminders about social behavior. Kids with general behavior problems are often not liked by other kids. Address the behavior problems and they may suddenly have new friends. Chronically spoiled kids, meaning kids who are not disciplined, are self-center and simply don't care as much about their friend's feelings.