Most Helpful Guy
Well you could just grow a pair and tell him yourself. That usually works instead of waiting around passively hoping that some one will do what you want them to do even though they seem dead set on doing the opposite. Though of course I would first consider the ramifications of your options. See every woman thinks she can do better, rarely do they. You want to run around and sleep around but what happens when you start to get older? What happens when you burn out and realize that no one wants a woman that has slept around? I mean honestly what can't you do when married that you can do when single except sleep around? Its your choice to make of course but its one you will inevitably regret because women always regret this. They want to live it up and they live in the moment and forget that their future is coming up and then they realize they don't have any one, that they could have been happy with some one that loved them, they could have had a family but instead they chose to party and live it up for those couple of years and then crashed. For example: www.dailymail.co.uk/.../...ow-Im-childless-42.html
There is a reason why the phrase "its always greener on the other side" is quoted so often. So consider that before you throw away your relationship (you seemed pretty set on this relationship at one point since you agreed to marry him). Just something to consider.
Most Helpful Girl
Stop being a coward. Grow a pair and do it yourself. You're wasting both yours and your boyfriend's time. You can do whatever you want without cheating and your fiance can find someone that truly loves him. Dragging this out will only hurt him more. Especially if you decide to cheat on him. smh.