Listen son, if it doesn't happen it doesn't happen.
"but i thought she was the perfect one!"
No she wasn't. If she actually was the right one she'd still be with you but apparently she's got too much estrogen to handle being near males.
There's a lot of fish in the sea. Just like when Bruce Wayne asked Alfred what he would do if he were Batman, Alfred simply replied, "Endure, Master Wayne". These wise words were spoken by this man.

I'm not telling you to put on a mask, cape and high tech indestructible rubber suit with a stuff ton of gadgets and a military grade car/tank, I'm telling you to move on. Life will be better by washing your hands, learning off of the signs she gave you and moving forward without looking back with grief and sadness.