I don't think I've ever read anything so poorly constructed in my life.
I've decided this is a mix up of Buffy/Angel & Twilight, but written by someone who has never written before. 
The constant use of 'and' at the start of a sentence really irritated me. It kept distracting me and I had to re-read paragraphs just to make sure I wasn't adding words. 
This could have been a great book, but there was just no substance.