Get a divorce or report your husband to the police.
lets do one better - get to know the guy before you start screwing him. It's pretty clear from how a guy deals with situations and events what kind of man he is. If women would THINK half as much as they FEEL - there would be far fewer chances of them finding themselves in situations where this kind of thing is a problem.
Stand up for what is right, even if you have to stand alone.