"That other 'c' word. Choice. A choice you make once, to love that person, to be with them whatever they do, however they behave." She glances beyond, at my brother. "It's a choice you then make again and again, every day. For the rest of your life, I guess." She looks back at me. "Loving someone isn't just about holding hands and kissing in public. Sometimes it's just as hard as not having someone to love. Harder maybe..."