My husband and I have been married for 23 years, and even from the very beginning we have had a VERY unsatisfying sex life. 
One of the first issues is that my husband has PE, and has it pretty bad. Sex lasts anywhere from 50 seconds to 3 minutes. On rare occasions it lasted about 20 minutes. "Bill", went to the doctor about this (only twice), and he had to have a vericose vein removed from his penis, but he didn't get any help for the lack of desire. The doctor gave him some Viagra, but it gave Bill headaches, and he stopped using it. I know he is embarrassed about not being able to sustain an erection, and because he ejaculates so fast.  
I tried reading everything I could about PE, sex drives, and what a woman could do to create desire in a man, and please a man, but surprisingly he does not like me to be "assertive". It actually turned him off. I got to a point to where I didn't know WHAT to do. When I say I tried "everything", I mean I tried EVERYTHING, but nothing worked. 
 
It's frustrating that he does not have a very strong sex drive. We married in our 20's, but even then he didn't want sex very often. (we only had it about once to twice a month) He had excuses for everything, and would NOT face this issue for the first ten years of our marriage. He would just get MAD about it, and make excuses for why we couldn't do it. He said that he just did not "desire" me. 
But, he didn't desire other women either, he just "didn't want sex". It had been VERY FRUSTRATING. I have always kept myself up physically, people have always told me I was attractive, and not to brag, but I think I look pretty good. So, it's not because he find's my PHYSICALLY unattractive. I just don't understand what's going on. 
 
Now, for the past several years, we have just lived as roomates, with the past year, sex being totally non-existent. I tried to teach Bill about a woman's body, and what a womans needs are, and how a woman's body works, (he had very little knowledge about this when I met him) But, still again, whatever I say, he does not put into action. 
 
I neglected to say that my husband is a workaholic. Work is his entire life. Coming from a very dysfunctional family, he chose work as his choice of addiction. His siblings chose chemicals. I believe that this, and a fear of failure had caused some of his sexual dysfunction. 
 
What's most frustrating, is that he puts so much back on me. "If I would only do this,or if "I would only do that", but when I DO the things he asks, it still doesn't change anything. Because of his work habits, his mind really is NOT on the task at hand. (pardon the pun) When I was going through "my sexual prime" in my 30's, I was "burning up with sexual desire", which was terribly frustrating, because I could never get my needs met. I wasn't asking for sex every day, ( but I could have used it), but I would have liked it at least a couple times a week.  
This whole thing, (plus others) has had a terrible effect on MY self esteem. I feel totally undesireable, unattractive, and now don't even WANT him to touch me. I know exactly what's going to happen if he does. It is going to be "sex as usual". He gets aroused, orgasms before we can even get into it, and I am left hanging. 
He gets angry at me, and says, "I SAID I WOULD FINISH YOU", but that doesn't sound very appealing, and believe me, it isn't. Especially in the manner in which he says it, AND approaches it physically. 
Because of this, and other problems, I am contemplating divorce. Is there anyone out there that is going through this as well? Have you had any success in making things better, and what were your methods? I would be interested. Thanks for listening. 
Dede7007