i just finished a book

and i'm PISSED...... i was enjoying it until my least fav trope popped up in the last 50 pages and now i don't know what to rate this fuck ass book on goodreads. am i abt to give it 2 stars (3 if i'm feeling generous) even tho i rly liked 80% of it?? PROBABLY i have no one to tell and i'm certainly not going to shit on this book to the friend who loaned it to me, so y'all get to hear abt it now