Damian had known Mar'i for 10 years but as friends he has things that he had fond of Mar'i. He knows he's Robin and she's Nightstar but he had strange feeling about her but he's a hero he cannot love. But one day Mar'i aka Nightstar got shot by the Joker and she gave Damian a promise that he will never break. "Do not ever make me go to the Lazarus pit and I wish you to re-mary and have kids of your own and move on...I love you"