Find one word that describes a character in your book very well. I would describe Hannah as delusional. She refused to see things for what they were and wanted to blame everyone else for her relationship ending.
Compare two of the characters in this book. Jasmine and Hannah were opposites and I think that's why Kane chose Jasmine. Hannah was clingy and manipulative, she wanted Kane for the wrong reasons. Jasmine was willing to let him go just so he his career wouldn't be damaged.
What part would you change in the story? Nothing at all. This was an entertaining read, with good plot and character developments.
Disclosure: I received a review copy of this book from the author.