Ask him too...tell him that you are in need of attention. I am very open with my hubby about my wants and needs and he usually does whatever he can to meet them. He appreciates that I don't play games (not saying you do) and am honest about what I think should happen.
You can't make someone spend time with you that have to want that themselves. However you can do things to influnce that. A persons acknowledgement of "Appreciation" comes with that persons level of self respect and morals.