Missing sex

My partner and I don't have as much sex as I would like. Typically it's at weekends because any other time he's too tired. It's becoming quite predictable and frustrating. I'll happily have sex whenever he wants it but recently I've been feeling like I should withhold a bit to make him realise how it feels to want and not get. I've tried talking. He jokes that I mustn't get frigid. But maybe I should.