Lauren Kate, has a masterpiece on her hands with the fallen series. Although I have not read all of them I a deeply in love with the relationships that have been built and rebuilt between the characters. And such strong and ever present characters they are!
Fallen Series:
Fallen 2009
Torment 2010
Passion 2011
Rapture 2012
Novella: Fallen in Love #3.5, 2012
~This series brought my joy and sorrow. I loved every minute of it!
Teardrop Trilogy:
Teardrop 2013
Waterfall 2014
Novella: Last Day of Love #0.5, 2013
~ I have yet to read this series. I have past it many times in the store and thought, if I had the extra cash! One day I will get to it.
Betrayal of Natalie Hargrove 2009
~Another one that I have yet to read. I did actually pick it up from the library once but had to much going on it actually get to it. I will try again.