I think that gaming is just a medium through which your problems manifest themselves. The gaming addiction is not a cause of your problems, but a secondary effect of something else. Even if you could defeat the addiction, I'm afraid that would not help you as it would find ways to manifest in other areas of your life. You must discover what the underlying problem is and usually it's something a person tries to avoid. You must bravely consult your conscience and ask yourself "what am I doing wrong in this situation?". Sorry, I don't want to sound like I'm blaming you, but assuming responsibility for the bad things that happen in your life is really helpful, because then it's on you. You're not a helpless victim in your situation but an active agent upon which everything depends. That's what I do with my problems.
And I understand that not having a girlfriend at 31 sucks. I'm 23 and I never had a romantic relationship, even though I wanted that with my whole heart. But I also believe there are valuable lessons that can be learned when you are alone. It may be painful to admit this but another person, no matter how wonderful she might be, can't make you happy. Nobody's perfect and nobody can carry the weight of responsibility to make us happy. That load is ours and even though its a hard load, its a liberating thing too. A well developed personality is independent and relationships from his or her perspective are optional, not mandatory.