Twisted Love

It just didn't make sense? So the brother's best friend is this dark and gloomy dude and shows emotions once and apparently it's a big thing since he's emotionless? and so the girl and her gang just decide to do things that'll trigger him? to make him sad, happy etc.. The love portrayed was sweet, but the plot twist was just a meh to me. I expected better. The hype is unmatched. Was this the right book they were talking about? coz Nahhh