how do you end a relationship without causing damage?

Just because something hurts doesn’t mean there’s damage. To lead someone on, to allow them to believe you feel the same way about them, that they do about you is damaging. To allow them to believe nothing is wrong when you’re trying to figure a way out is cruel. The best way to end a relationship is with empathy and honesty. Don’t tell them there’s a chance if there isn’t. Don’t say unkind things, that aren’t necessary. Be concise and quick but not heartless.