Angel, sorry you are dealing with this. I agree with Sunna regarding your BF addiction issue with gaming. Yet, I will also add this:

There is an old expression: "Why buy a cow when you can get milk for free"? You have been dating for 4 years and after the first year the relationship changed. Your BF is comfy because you are there if/when he wants intimacy. But he seems to be getting more from his games than you.

Please think about getting some outside professional help so you can sort through what you currently have and what you really want in your life. You probably deserve a lot better than what this man has to offer.