well I suggest you read the following article about a study that's been done:
Have you ever meet someone who is highly intelligent at a certain area but totally lack social skills? Sometimes, that person can be downright rude but do not seemed to be aware of his effect on people. And you are not the only person with that complains- other people also said that they were hurt by his behavior. Or as a wife, you may have feel that you have married a man with no disregard for your feelings and seemed like a social outcast.
Before you take it to heart and become hurt by his behavior, you (and him) may not realize that this person could be an Aspie. Meaning he has the Asperger syndrome- which is one of the spectrum of autism. The condition is usually undiagnosed because this person usually does not behave like the usual autistic child. The person grows up dealing with criticism, rejection and having a serious problem relating to those around him. This further make this person retreat into his shell and become even more introvert.
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I have met too many of these people that I've lost count and will very soon lose faith in the human race because of this. I no longer can carry out a normal conversation with people, because i'll either get a reply which maybe very out of context and weird, or a joke that went horribly wrong which would make the situation very awkward... I can go on, but i rather not because i'll just end up getting mad again at something that I can't find a solution to.... btw not all the ones i met are "smart"... but i personally think the internet is screwing people's social skills and the ability to interact and communicate with one another face to face.