Why is my husband so tired?

All he does is work, never wants to have any fun. The other day I got all dolled up, black silk, black patent high heels, garters..... and was sitting reading a book... well he didnt even notice he said "did you eat yet?" I said "yes, I have" he said "okay, well, I am going to bed" and he turned right around and did just that. Its not like I am unattractive..... isnt the whole reason a man works hard is to get his woman in bed???????