From the X-chromosome POV, and a former non-gamer, I suggest trying to play games with her.
I hadn't touched a video game console since the first Sega Genesis when I was 10 till my current boyfriend bought me an X-Box. He then taught me the basics in playing and got me games that I was interested in - mostly the Buffy the Vampire Slayer pair - and now I actually like playing video games. I still suck, but I get the enjoyment. Maybe get a multiplayer game, or if she'll tolerate it, help her play one of yours by teaching her.
Though if you are spending an extremely high proportion of your time playing the game, I might recommend toning it back some or scheduling some time specifically for your girlfriend. There's a difference between a hobby and an obsession, and from my personal POV, I'm a hell of a lot less tolerant with obsessions.
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From the X-chromosome POV, and a former non-gamer, I suggest trying to play games with her. I hadn't touched a video game console since the first Sega Genesis when I was 10 till my current boyfriend bought me an X-Box. He then taught me the basics in playing and got me games that I was interested in - mostly the Buffy the Vampire Slayer pair - and now I actually like playing video games. I still suck, but I get the enjoyment. Maybe get a multiplayer game, or if she'll tolerate it, help her play one of yours by teaching her. Though if you are spending an extremely high proportion of your time playing the game, I might recommend toning it back some or scheduling some time specifically for your girlfriend. There's a difference between a hobby and an obsession, and from my personal POV, I'm a hell of a lot less tolerant with obsessions.