I don't think this is much of a big deal, but I couldn't help but see in Ayu's PV and offscreen shots that she wears a flower behind her left ear.
Being born in Hawaii (as my parents were both raised there) - usually, when a girl wears a flower behind her right ear, it means she is unattached, or in other words, is single. But if the flower is worn on the left ear, it means one has a boyfriend or is married.
As I said - I don't really care about Ayu's love life, because we all eventually have one, right? If Ayu is happy, then I am happy for her as well
Just some cultural point I wanted to bring up ..