My feeling is that it is time to get a divorce. She doesn't want to try.
Learn techniques from books to learn techniques of pleasuring a woman. You can learn to manipulate clitoris in a safe manner.
Before you cast it all away and assuming you are otherwise compatible and you have desire for her. Try reading Men are from Mars, Women are from Venus. You should discover that women get their sex drive differently than men. YOU CAN deliver the specific approach to her that will increase her desire for you, even if she currently does not show a sex drive or has been abused in the past. This is a long road, for both of you. There is no over night fix, but I have seen it fixed many times.
As you move along and she seems to respond lovingly to the romantic things you start doing, if either of you find it difficult to communicate about it, try a few sessions with a marriage counselor. If both of you can communicate about it great. It will help you understand where she is coming from and more how to negotiate her feelings. And when I say communication I am also including her body language.
Basically, you will need to be the most romantic man she has ever known without pushing for sex (which is romantic in itself). She will eventually come to you (and it needs to be her coming to you) if you discover all the right buttons, which will be trial and error on your part. It must be a constant thing, not a Saturday night thing. Show her how much you love her every chance you get and set up the stages to do so.
Hold your masturbation to no more than once a month, so your desire can help motivate the romance.
If you feel you need help along the way doing this, feel free to private message me on this site.