Meanwhile...
Jacob was reading a book on financial analyticals, written by his father, when his phone buzzed constantly. He frowned and swiped open to see the facebook notifications. He clicked it open and saw Isa was tagged in several photographs from the party currently going on in the yacht. In one of the pictures, Cho was happily making Isa eat the cake, while in other pictures she was clapping and smiling while Cho was cutting the cake.
To a normel person, the pictures would have freaked him out to the core, even to the point of crying whole night. But Jacob's relation with Isa was different and more intense. He knew the girl inside out already, in these few days. He knew, when she was just being formal and when she was truely happy.