Oh girrrrrl!!! You know, this is one of those things that kind of builds over time I think. At first it's something he does when you aren't home just to pass the time, next thing you know you've got an addict on your hands. It's like a drug (hey, at least it's not porn!)
Rafael gets stuck on things sometimes - like a flight simulator game, or working on something in the garage. It's nice that they have hobbies, cuz that gives you time for yours. But when you are feeling neglected and a pissed off like you are now, and he's not doing work because he's addicted to the damn game, then I think you definitely need to do something.
You just have to be up front with him & give him a little tough love. Let him know what you are seeing - because he may not see it since he's so wound up in the game. Point out the things that are being neglected (YOU, work, etc), and how it's making you feel - in a non-confrontational way if at all possible
Also, I will kick him for you when you get here