I would say limit your WoW playing to maybe 1-2 nights per week; if you are part of an active raiding guild that may be hard to explain to them, but if you are a contributing member they should be willing to make the sacrifice to keep you as a member.
I would say that the odds of meeting a potential partner through WoW are pretty slim.. definitely the exception and not the rule.
Having an active social life isnt the end-all of meeting people, I met my wife completely by chance, through a client I was working with. So yes, career CAN lead to relationships, in an indirect sort of way.
Now to completely contradict my last statement, careers can also destroy relationships, and prevent new ones. If you find a rewarding career and are successful with it, you may not have the time to play games, or even to have a social life at all. Look at all the single doctors out there.. too busy working to have a life.
I stick to my first statement of limiting time spent playing games. Get out and do other things that you enjoy, and put yourself into situations to meet others who enjoy the same things you do. That's a great way to meet compatible people, and to form relationships of all kinds.
And in response to the statement above that relationships require lots of time etc: all good things take effort. Nothing worthwhile comes easy.  |