First of all, I often think he's depressed - he rarely smiles, and never comes across as happy. I know he's straight and not gay/asexual because of the amount of porn I've found (I don't go routing; I borrowed what I presumed to be a blank DVD from a spindle on his desk. 4gb of porn).
I have no friends because I was ill when younger, which meant I never saw any of my school friends. This has carried on until now, and I'm not one to go drinking etc so I've been a bit of a loner for years (I met my girlfriend online, that's how I know it works). I know he wants a girlfriend; he was really into a girl he used to work with. She didn't feel the same way.
He's stuck in a vicious circle of shyness and WoW. WoW gives him some sort of social interaction, which in turn keeps him indoors, thus not helping his shyness.
I just want what's best for him, because like I said I know he wants a girlfriend. I also feel sorry for mam & dad as I'm guessing they didn't want their eldest son to still be at home aged 30.