No, you are not wierd, you are a woman. Sex is important to men. Beyond the physical need, it carries tremendous emotional weight. Sex can often be as much a measure of a mans worth as his job. It affects his self esteem.
I can absolutely, see "Counting the days". Having recently divorced my wife, and being a committed Christian, I am going through a similiar struggle. I cannot imagine 17 years.
I can tell you this, when I do get married again, i am going to have a serious conversation about sex. A woman who truly loves a man will make satisfying him sexually a priority in her life. It should bring her joy to bring him joy. If she doesn't truly get this, then she is not capable of love and is not worth marrying.