the "you deserve better" situation.

Rose • Bunny girl
So my crush, is really sweet and kind and has been helping me get over a toxic relationship for a few months. 
He likes me, but keeps telling me "you deserve better" or "I'm afraid I'll hurt you, cause I don't wanna ever hurt you". I tell him that I respect his choice and have told him that he makes me happy. I don't know what to say to him every time he tells me I deserve better. Please write some examples to say to him. Thank you x