The author had a plot lurking around, but it was so undeveloped and almost non-existent that it couldn't be counted as one. For 75% of the book, most of the scenes didn't contribute to the plot. Shopping trips? Dress-fittings? Boring parties? Random spur of the moment sex?
The author needs to focus in on the plot and what details are essential to moving the story forward.
Furthermore, the author needs to learn word economy. There is no reason I should have to suffer through an entire paragraph description of the protagonist's current choice of attire. At one point, I was subjected to a really long paragraph cataloging all the furniture and room decor in the bedroom. Is this a mystery novel? Are we playing 'spot what doesn't belong here'?
On the subject of words, the writing was awkward, clunky, and wordy. Let's not forget to mention all those distracting punctuation errors almost every line.
Here's my own little list of punctuation errors, just for the author: missing commas of direct address (biggest offender-- almost every line), missing subordinate commas, missing possessive apostrophe. Do your self a favour and buy a grammar textbook. Writers shouldn't have to depend on copy editors to do all the punctuating for them. That speaks to willful ignorance and the lack of desire to improve one's writing skills. You have to know the rules in order to break them. You're not being creative here, only simply ignorant of how sentence structure works.
The characters were flat.
It's finding books like this that put me off from reading new self-published works. If you're going to sell your novels, then act like a professional. Once money is involved, it becomes a business transaction. Hire an experienced editor, clean up your plot, and cut out all the unnecessary bits. And develop strong, compelling characters. Better yet, keep writing, but wait a decade before you publish anything. That should give you enough time and practice to get a decent grasp on grammar and the basics of the craft of writing. Read books on the craft of writing, paying strict attention to sections on plot, character, description, dialogue, narration, and self-editing. You will improve over time if you are really serious about this career.