Promising someone you love that you are never going to hurt them—is promising that you won’t actually love them or let them love you. That’s where the hurt comes from—when you care. We’ve hurt our friends and our relatives. A lover is no different.
Instead, I’d say, “Baby, I’m gonna love you so much, we’re gonna fall so damn deep in love, that every time I fuck up it’s gonna hurt like hell—and likewise, every time I do right, your whole world is gonna light up”