Then DON'T....use your self-control.

Put your energy into working with your husband to work through what the problem is.....even if it takes marriage counselling.

Sorry but having sex isn't the most important thing in life....you need to figure out your values & your priorities. I agree that it's not good to have a sexless marriage, but before running out & having an affair, it's much better to work on the marriage & put all your focus onto that rather than trying to find someone for a fling just to satisfy your physical needs.

If you have worked on the marriage & figure out the why there is no sex & if at that point it's more important to you to have sex than to have a husband....get a divorce & leave him rather than just going out & having an affair....having your cake & eating it too.....is NOT the appropriate solution for your problem