You really should not send out photos of yourself like that but I understand whats done is done. You will just have to delete them and talk to your boyfriend and try to make him understand that its him you are with now that one guy is not the guy you love. That you wished it did not happen and you regret even sending it to that guy because he is not the one that you like that the one you like is your boyfriend and that you made a mistake and that you are sorry that you did this to him.
Make him know that you understand why he feels this way and just explain how you feel and you are sorry. Take this and try to learn from your mistakes. Focus more on your relations then the physical.
I know its hard buy in the long run it is better.
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.