i know all that feeling very well ,i dont have any advice how to fix it but you shoud try to let it go...if he really loves you no matter what happen he will come back but before that happen you should be prepare to become so much better at first learn to love your self tell that u are beautiful even if u think your not.....grateful for everything you have even if you have nothing ( at least you still have air to brreath) ...its hard to do believe me i know it coz iam still struggling with my depression even when iam wrote this for you...but someday will comes when everything will be fine and emptiness go away and God replace our heart with the new one...
hope it helps