You were in an arranged marriage with Childe, you promised each other not to fall in love. He wanted to take back what he had said. But it was too late, he had given you permission to go out and live your life freely, your magnificent features and your personality attracted him. He could just silently cry and sob alone in your shared bed at the thought of you being with someone other than him but it was his fault after all, he couldn't do anything about it.