When he's not playing a game unplug everything. When he finds this out, tell him that you two need a serious talk where you need ALL his attention. Sit him down somewhere; tell him how ignored you feel, how used you feel, how neglected you feel because of his obsessive video game playing. Let him know it needs to be cut out. You cannot emotionally handle it anymore, but you need someone who can give you the attention you need, and that may mean kicking him out or dumping him to find someone that can. You need to instill this into his brain, that it takes two for a relationship to work. He may feel comfortable with how things are, but you are not. If he's cooperative, write down a list of things you enjoy and would like to try, and circle the ones you're both interested in. Try these things and maybe you both can find a hobby you can enjoy together. Otherwise, buhbye.