Depends on the person. It's less intense over time but does it really go away? Especially considering when you are with someone new and the things that person did you will come up a lot, make you feel unnecessarily insecure.
But for my last love affair, it took a good month to come to terms with what had happened.
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.