Sex, am i being irrational.

Okay, so I am beginning to wonder if my SO and I are sexually compatible. A little back ground. I'm 21, he is 32. He works aprox. 14 hours a day. Works 5 days a week. Off most weekends. I stay at home with our 2 children. Because he works so much most nights he is very tired. He will shower and lay in bed and end up falling asleep. I get it. But here's my problem. We are very "affectionate" should I say. He is the type to come up behind me while I cook and touch and kiss all of the right places. Then walk away and say something silly like "ima punish that ass tonight" well long story short the ass does not get punished very often here lately. I have tried to be understanding. I get it you work hard. This past weekend he spent all day teasing me. You name it he did it. From fingers to felatio, then as I am cleaning the kitchen and putting the kids to bed he falls asleep on the couch.... I was so upset, I left him there. I was livid.! Idk why but I hate waking him up for sex. I want him to follow through. To finish what he starts. Am I being unreasonable.? Is it me.? How do I talk to him about these feelings.?