Help for computer addiction.

[Red]

Firstly I've to say I am not the victim; my friend is, and he won't leave his house, unless the business is work related. He has this attitude that rejects everything and puts being on a PC as first prioritite. He's never come to parties, although he's invited, used to come to friend meetings - not anymore. I could talk all day about what he is and isn't, but these aspects concerns me the most. Any help?