OP, you have enough advice already. This is called being given the cold shoulder. In response, everyone has told you to either (1) slap the slut or (2) ditch the bitch.
Option 1 means STOP TRYING to fix this by some magic words or actions. You'll only disgust her with your neediness and drive her farther away. Let your silence be your response, or, if you must, say something VERY short that lets her know she doesn't get to pull your strings. Maybe she'll come around. Maybe she really is into another guy but he won't last long. Maybe she's a goner. Either way, stand up straight, be a man, and preserve your dignity.
Option 2 means use this as a lesson and just move on. Sometimes the only answer is "because female". There's no reason behind what they do sometimes. Yes, it hurts, but it won't cripple you unless you let it.
Option 1 means STOP TRYING to fix this by some magic words or actions. You'll only disgust her with your neediness and drive her farther away. Let your silence be your response, or, if you must, say something VERY short that lets her know she doesn't get to pull your strings. Maybe she'll come around. Maybe she really is into another guy but he won't last long. Maybe she's a goner. Either way, stand up straight, be a man, and preserve your dignity.
Option 2 means use this as a lesson and just move on. Sometimes the only answer is "because female". There's no reason behind what they do sometimes. Yes, it hurts, but it won't cripple you unless you let it.