I wouldn't take it personally. A lot of people just aren't comfortable around people they don't know, and it's not as if your friend can stick to your arm the entire time of your party as you'll be talking to other guests. Well, she can, but she'll just feel clingy and awkward and really uncomfortable.
I really doubt she's doing this to insult or hurt 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.