Distance from Sex

So I honestly just don't know what to do and any advice helps. My boyfriend and I used to have sex regularly. It was a comfort thing I guess you could say, but lately he just doesn't seem into me. He's more about his time and video games and although I know he like his "me time" he usually includes me because I just sit there with him or lay down while he plays his games and watches football, but lately he doesn't want me to go over and when I do he's never showing me any affection I always have to make the first move. Not saying I expect something every time, I just don't know what to do or how to get him to love me the way he did when we first met. :/ HELP