Honestly your book seemed amazing it's perfect the way it is. Don't try and please anyone because in the end the book cover had your name on it thus it's you that controls EVERY single aspect of the book. You seem like a really talented writer don't give up on that honestly you've got this gift don't let people discourage you, no one can please everyone in life and that is fine. I loved the idea it seemed like it would have been one of those soon to be published romance books. I'm sorry if I'm rambling or I may seem nosy but please don't give up writing because of some haters..... writing is beautiful honestly if I had your talent I would never give up on that, not everyone can write so consider yourself one of the lucky people out there. Give it a shot one more time and don't listen to anyone or if you would like make a bright new start and comeback with a new book !!
It will be utterly devastating to lose such a great writer!! everything has it's ups and downs but you gotta conquer them who knows maybe in the far future you become a huge author and all your fans will start buying your books in hard copies all around the world.. You never know all great endings have small beginnings.
You are an AMAZING INSANELY TALENTED WRITER don't give up on that.
Xoxoxo