I am HD, my ex was LD. If I had known the pain I was going to suffer being married to a low drive spouse I would have never married him. I had no idea until all was said and done that our sex drives were so different.
Any need that is consistently unmet by your spouse is reason to leave a marriage as long as there are no children involved. I think once there are children you give up your right to have your needs met....it's their needs that should be the main focus. Corri is right. If you are going to take a step such as divorce you need to take it before their are more lives to drag into it. You have no one to answer to at this moment but yourself and your wife. You have done everything humanly possible to try and bring about the change in your marriage that you need to be satisfied. You owe no one anything more than you have already given.
I would applaud anyone for getting out before there are children. After that, it's a selfish move because the destruction it causes a child is a life long burden for them to carry. You may be off getting good, regular sex but you will do it at your children's expense. Do whatever you feel you need to do before you are in a position to have to worry about what others need you to do. Cathy