Jack Gilinsky is Beacon Hills High biggest heartbreaker. He strings girls along then drops them as if they meant nothing. Secret is Gilinsky doesn't attach himself to anyone because he's secretly afraid of heart break.
But all that changes when the new girl Lydia Forbes comes into the picture. Lydia isn't all that interested in Jack at first, but he eventually strings her along as a bet. But he's shocked when he starts to catch feelings.