!!!!!!!COnFusED HeLP!!!!!!?

me & my ex went out 3 times & everytime we break up he ends up calling me or messaging me and he tells me he made a mistake. He's made me tha happest i've ever been wen i'm wit him. But It hurts like hell wen he breaks up with me. He says he loves me and he neva did or will stop loving me. We broke up recently & he still is tellin me that he loves me, i still love him but i dont knoe wat to do if he ends up asking me out again!!! wat should i do??