Loveless Marriage

When I married i remember my husband said that we would always be open and honest with each other and not be like our parents who fought endless and didn't show much emotion other than anger.
Sixteen years of marriage later and we are where I dreaded ending up, in a loveless sexless talkless marriage.

We both work and on the weekends he spends his time at golf, Saturday and Sunday. I don't mind as its good to have interests of your own but the trouble is he has no time for anything else. I spend Saturdays watching our kids sport and Sundays is the time to get the house tidied (change the beds, washing, vacuuming dusting), do the shopping for the week. I also mow the lawn and put the rubbish out which I feel is part of man chores but he's not house proud and doesn't bother.

I tried talking about our situation and how i feel in our marriage but the only thing he says is do whatever you want. I've spelt it out that I'm lonely, I feel unloved, I want affection, intimacy and the sex is crap, boring and robotic that we both don't bother anymore.
I'm 41 and question whether I want to spend anymore time in this relationship. I so want this marriage to work but he has got to want it too and he no longer shares his feelings with me. Our two kids feel the tension and I have talked to them about the possibility of me and their father separating for a while. They have been more grown up and open about the situation that I know they will handle a separation alot better than their father.

My problem is I have a job that I like but the money is very modest and I cannot afford to leave. I've applied for another job and if I get it I will be a much better position. I feel guilty for thinking this way, but I drawn the conclusion that the only things that I can change are those things within my power. Like my self respect, my happiness, my life.