Then. Now. Always is a study of love, life and human relationships. We all need love to function. It comes in different forms, all of which are valuable.
The novel encapsulates hope, using the motif of rainbows. “I come here every morning to watch the rainbows.” Rainbows offer the promise of something brighter to come after the rain. “The darkness that had enveloped her is pierced now with brightness: the future contains hope.”
Another theme is that of appearances. People may show one face to the world but the person behind the smile may be very different.