While a lot of this book feels so unbelievable, it is still so action packed with mystery and kept me reading without (mostly) stopping until the end.

Jade had been broken up through text by her former BF Silas and he's with her former BFF Lainey now. Lainey and Jade had signed up for a semester aboard a cruise ship and Jade still goes. Not expecting the two formers to be there too. Now she can't avoid them and they accuse Jade of stalking. Then it seems Lainey is killed. 

When things unravel and get revealed, I felt myself thinking "really? How could this elaborate scene actually come to pass?" and the ending I just hated.