You promised your little sister you'd come to her dance show. You really meant it. But then your friends invited you to a thing on the same afternoon — something you'd been wanting to do for ages — and you said yes to that instead. You told your sister you "forgot" there was a clash. You didn't forget. You chose. The show came and went. She did her dance and looked for you in the seats. You weren't there. She hasn't said much about it, but she's been quieter with you since. You got the afternoon you wanted. You also broke something you can't quite see yet.