Blue Moon, by Alyson Noel

Ever is learning how to control her abilities with the help of her
boyfriend Damen. However then he seems to be losing his memory
and even seems sick, which should be impossible for an Immortal.
When Damen becomes sicker and completely forgets about her,
Ever goes to Summerland, a magical place where she hopes to find
him a cure.

I was not hugely fond of this book, despite liking the first. The
characters were quite flat and the plot wasn't anymore interesting
then the first.
3 stars,
Emme