Love
You probably can win back his love, and our goal is to help you do just that. Do not despair - you made him love you once, so there is a good chance you can do it again.
Losing someone's love can make you feel hurt, confused, even angry. The problem is that if you react to them with these emotions ruling then you can reduce your chances for making him love you again significantly.
There can be a lot of reasons that you find yourself in this unfortunate position now. Figuring out what went wrong in the relationship can be a great first step, but make sure you control what you do in the meantime.
If you really love him that much then you have probably already resolved yourself to do whatever it takes to get him back. That is a good thing, unless you have been over zealous in contacting him. Make sure and let him have room to breathe.
Emotions run very high after any kind of break up, so guard yourself against unclear thinking and irrational thoughts. Not only do you not want to say or do mean things you will later regret but you also do not want to appear desperate to get him back.
He may need some time and space to work through his emotions the same as you may feel like you do. Do not try to contact him by phone, text or even email. If you bump into him accidentally that is fine, but do not go out of your way to do so at first.
Keep all contact very casual and friendly, no pressure, no bringing up the break up. If you want to make him love you again you certainly do not want him to think you are at his beck and call.
Let his curiosity start to get the best of him again, just like when you were first winning his love.
Allow yourself some "you" time while this is going on. Improve yourself both in