The sun puts on a mask, every morning till night. She shines so bright it's blinding, but her smile was not quite right. Nobody seemed to notice, or if they did, they didn't care. Even if they asked what's wrong, she wouldn't ever share.
The moon of course did notice, he just didn't want to intrude. He hated how her heart seemed, to have a heavy bruise. The moon watches over the sun, wondering how to make her okay. He really hopes that one day, her true smile will stay.