Jonathan quaked with rage as he watched Jason ravish Jessie. He quaked with rage because his half brother, someone he always admired all his life kissed the woman he loved. All this while he could never lose respect for his brother, he admired him way to much and for far too much. To think a woman would come between them? But it wasn't just any woman, it was Jessie. Worse it hurt him because he wanted to he the one that made her moan like that. At the end of the day she'd choose.
And how dare she? Just kiss him like that right before him, like his feelings were a joke? Fine she was clear about Jason but how the he could she disrespect him like this? Too angry to form a reasonable argument as to why he shouldn't just move forward and break up the kiss and make a scene. Like hell he was going to let them have the time of their lives as he stepped forward someone grabbed him from behind.