Start antidepressant if you are really very depressive after consulting a psychiatrist. your only can reestablish your relationship. So keep trying to meet him and honestly explain your situation. If your relationship really had been strong then you should be optimistic . And still condition does nt get in your favor accept the situation, move on  with make up of mind ,not to repeat same mistake in future relationship.  May be destiny has written something better for you.

Hi, Relax ...there is a solution for everything..ok...I respect you as an emotional person but dear you need to take a pause and take  a practical and sensible approach...Whatever mistake you did(as no Details) I think your BF must have talked about it...He might have been in a bad mood so he might have uttered those breakup words...I mean don't focus on something said out of anger or irritability...Take some gap and again talk to him about it...If it doesn't work then you should know every emotional person remains happy with someone who loves you more than you love that person....Don't try to hold sand in your fist..it moves out....Got it...Also talk to someone close about it.... Consult a Psychiatrist if it doesn't work...goodluck