Why bother putting yourself at his level if you clearly have evidence he is seeking out another lover why bother. You need to be the wise one and move on in an elegant manner. You obviously deserve better so don't stoop to shady revenge tactics only causing additional problems.
I know it is difficult to avoid getting even but really you will only be hurting yourself. Best of luck!
I don't think revenge is the answer to your problems. At this point I think you need to re-evaluate your relationship and decide if you can forgive him and try to build your relationship and develop trust. Or you need to determine if there is still any type of mutual relationship left.
Insist upon fidelity and respect and he can't abide by that then move on. No, it won't be easy but trust me you can and will survive without a man who can not be trusted to be true to you. If he lies about fidelity, then he will lie about other things in the relationship.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.