Be amazed
Seriously though, it seems like you have made an unconscious commitment to the first girl. While I can't decide if she's playing you or not, she is in fact blocking you in discovering your own feelings. You seem too fixed on her and what her feelings for you are.
My advice is to let it go (just a little) and look around. There are probably some things that are unjustly put aside because of your plans with her. Try easing up on the love feelings and enjoy the companionship of other people. Perhaps you could spend some (casual) time with the second girl or your other friends. It doesn't need to mean anything, but you won't find out until you do. Hanging in a limbo because girl one is unavailable is not such a good idea.
Easing up a little has the added benefit of preventing you from becoming 'that annoying guy'.
I'm sure you'll figure out your true feelings if you take a breath and look around. It could very well be that you are truly meant for girl one, but setting your mind solely one her is not a good way to find out.