Need advice! Please help

I've been with my bf for two years and we've lived together for one yr. I'm wanting to move out and love with my family again because our relationship is just so much different. I'm hu happy most of the time because he fails to be intimate and romantic with me, and he spends literally all of his free time playing video games and chatting on his headset. I understand we've moved past the honeymoon stage, but even after sex he just puts his clothes on and acts like nothing happened. I've tried talking to him countless times and nothing ever gets better. I feel alone when I'm at home with him and I feel like some space might help... as he was truly an amazing man when I met him.. very faithful and very in love with me. Still is.. just can't seem to show it. I'm afraid of how life might be without him, and I have no idea what to say to help him understand. Any suggestions would be so appreciated