No its not wrong its jst sex and your profile pics hot.
Apparently you don't understand what a boyfriend is supposed to be. You entered into an exclusive relationship with him, that means no romantic or sexual activity with anyone else but him. If you wanted to see each other but still sleep with other people you should have suggested being friends with benefits or something aside from a serious relationship.
There is no reason for him not to be mad at you.
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.