How do i tell him?

I was together with my ex-boyfriend for about 5 months and he broke it off saying that we are too different people... even after breaking up i still love him so much that i'm suffering from light depression...I love to look at him , I love the smell of him, I love his kisses and the way he makes love to me... i miss all of it so much....we're friends now and it's hard trying not to cry wen i see him... i really do love him... wat can i do to get him back? i've been advised to talk to him about it but what can i possibly say to him that will make him rethink our relationship and/maybe take me back? sorry for repeating wat i said before....