This could have been a great story, sort of a YA version of Bound by Honor by Collette Gale (that's an erotic retelling of Robin Hood where the Sheriff is the love interest). Here we have Angel who falls in love with Captain Jamie Hook. 
 However, the writing is so juvenile and the book really needs an editor and a proofreader. There's excessive use of exclamation points - yes, she's an eighteen year old girl so maybe she's just really excited all the time - and most of the dialog is just bad. 
 She's supposedly from an upper class family in London, but talks like a valley girl with no British colloquialisms. She has to attend banquets with her family all the time, but they only appear to have one servant for their huge mansion. 
 The formatting is poor - only some of the chapters tell you who's POV it is and because they both speak in the same voice, you don't always know which of the two is currently speaking. 
 A good editor would have helped with some of these issues and it's too bad one wasn't used because the premise is great.