That's wierd. Most of my friends are real mature or complete sports-aholics, and many of them HATE video games. But whenever I bring it up, they don't really bother me about it. A good crack about something you like is always good for a laugh.

It's either that he's been brainwashed by people less mature than him, or it's that ALL of his friends like video games more than him, and he is trying to get out of a situation he thought he might have been good in. Inferiority complex, perhaps?

Or, he's is a typical teenager, and he's trying to find ways to NOT conform to what people think of him, or simply to do things for the sake of being different.