You sound like you really like this guy, but you didn't try to call him when he first gave you the number, and I think that says something... Now that you've decided to call him there's something wrong with the number and it might be that he just change his mobile phone or something, anyway, you won't know until you talk to him about it. Just keep the conversation light-hearted because he may have given you a wrong number if he wasn't interested. In any case, don't let him give you his number again, give him yours and let him contact you if he's interested.
At least then you'll know, and you won't be bugged forever wondering what if.
As weird as this sounds, if things are meant to work out, the world will find a way to have you two run into each other again.
What about saying to him and take it from there. If he brings the whole numbers thing up. Explain what happened and then exchange details casually.
Just be your charming flirty self. If he's interested he will make the move. If he doesn't he isn't a man.So just show up.
Be cute. Be responsive to him. Show your interested without verbally saying it (not at first anyways).
I hate to say this, but maybe he did it on purpose because he was being cowardly and thought he was being "nice". I know many girls who do this because they enjoy the attention but when the guy makes his move they wuss out and give a fake number.
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.