I think I'm bisexual and in love with a girl I don't even know?

I can't remember what it's called, but some people believe that there is like this "love at first sight" type thing where a person in the world is holding the other half of your soul, and when you see them you "recognize" them - like your soul knows that they are their other half and that you belong together. I know that I've been in love with someone I fell for eight years ago and genuinely felt like we belonged together, but then it turned out she didn't feel the same and is now getting married. F'in sucks dude. So who fricken knows. All you can do is try and get to know her, see if she likes you back and go from there. Good luck! (: