It depends on the guy. Some guys just don't want to ruin a good thing and are scared that this may ruin the relationship. Other guys may have action on the side so they don't need it from you too.
I know this answer probably didn't help but if I was your boyfriend it would be so I did not ruin the relationship. Sometimes just being with a person is enough without the physical part.
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.