You must put his past behind you and love him unconditionally. If you continue, you are putting your relationship in jeopardy. It is a hard thing to do, especially when you wish you could have been his first but many couples today experience the same thing, (sex before marriage) and they feel like there relationship isn't what it could be because of it, which isn't true.
You can love and be loved anew each day if you will not let the thoughts bring of the past. Draw a line in the sand, so to speak and let it be like water off a duck's back. Don't let it bother you.
Think on how much you love him instead.
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.