In this book Austin and Lux share a birthday, they are both Cancers. They meet at the wrong time when they are both selfish and immature and when it comes to a Cancer in love, timing is very important. Cancers are naturally compassionate, sweet, deeply feeling, relyable, very loving, emotionally avalible and very driven. They make the perfect companion in life and if you have one make sure to be careful with their sensitive souls - loyalty is something they expect without any exceptions. But, hurt a cancer and you are pretty much fucked. You will be faced with a unforgiving, moody, snappy, sharp-tounged, and particularly sensitive life force drowning in their feelings of betrayal.
In short, don't make an enemy of a Cancer and don't fuck with them - you will come up short.