I don't "believe" in video game addiction, i feel that the term addiction is used overly dramatically and inappropriately. That being said, 18 hours a day is definitely excessive however when you use the term "addiction" like so many do, you fail to recognize the cause of his behavior by saying the game causes him to play the game. The 4-5 hours a day he plays now is nothing, i can easily log 8 hours of gaming into any given day, and i have done the 18 hour days too, pretty often during the summer actually. Mostly for me it's a time killer, i play games cause theres nothing better to do, on the other hand i will sometimes put off stuff i need to do because i don't want the responsibility of doing it (but eventually i hit a "crunch time" and get it all done at once).
I have known myself to go through something i would call "withdrawal" it takes me longer than a day but it still happens, and it tells me that there is "something" that games give me that i'm not getting elsewhere. I don't know what it is, it may just be an escape from a reality where i have to be responsible for my actions, or even more generally just an escape from a stressful world where i cannot "fix" the problem causing the stress but still can't help but feel responsible. I think i can reasonably assume that your boyfriend is using games as a similar escape. If anything i'd say to try to figure out what he's escaping from, he may not even realize why he plays games himself, then again maybe he does know, looking into this wouldn't be a bad place to start. I don't think the answer is in limiting his game time, the trick is, again, to figure out why he plays and then show him a better way of getting it than the games he's playing.
Keep in mind that some people don't "like" being around other people, I mean it is enjoyable for some time but i know from experience, that unlike most people, being around others can tire me out, even if i like being with them in general. There is nothing i can or WANT to do about this, it's simply part of who i am and games happen to be a convenient way of being alone.
Also check out the "Ask Dr.Mark" section on this site, i'll see if i can find a link to a useful article.
*EDIT* found one that might be helpful http://www.escapistmagazine.com/articles/view/columns/ask-dr-mark/8147-Ask-Dr-Mark-8
I have known myself to go through something i would call "withdrawal" it takes me longer than a day but it still happens, and it tells me that there is "something" that games give me that i'm not getting elsewhere. I don't know what it is, it may just be an escape from a reality where i have to be responsible for my actions, or even more generally just an escape from a stressful world where i cannot "fix" the problem causing the stress but still can't help but feel responsible. I think i can reasonably assume that your boyfriend is using games as a similar escape. If anything i'd say to try to figure out what he's escaping from, he may not even realize why he plays games himself, then again maybe he does know, looking into this wouldn't be a bad place to start. I don't think the answer is in limiting his game time, the trick is, again, to figure out why he plays and then show him a better way of getting it than the games he's playing.
Keep in mind that some people don't "like" being around other people, I mean it is enjoyable for some time but i know from experience, that unlike most people, being around others can tire me out, even if i like being with them in general. There is nothing i can or WANT to do about this, it's simply part of who i am and games happen to be a convenient way of being alone.
Also check out the "Ask Dr.Mark" section on this site, i'll see if i can find a link to a useful article.
*EDIT* found one that might be helpful http://www.escapistmagazine.com/articles/view/columns/ask-dr-mark/8147-Ask-Dr-Mark-8