From the start

Johan chuckled. "I know that you have liked Christian since you were a child, Miss."

"Who told you this? Who was the one to speak presumptuously to you?" shrieked Charlotte panicked, her pride disturbed when someone found out that she had been after Christian since childhood and had not been able to get him. "Tell me who dares to speak like that, I'll tear his mouth to pieces!!"

Seeing Charlotte's drastic change in emotion made Johan smile with satisfaction, Johan managed to read one of Charlotte's aces. Besides being so arrogant, apparently Charlotte has a very high self-esteem. Charlotte will be so angry when her pride is disturbed. Unknowingly Charlotte has shown one more weakness to Johan. 

"Suri Mireya Clarke." Johan said Suri's name so slowly, deliberately igniting the fire of hatred inside Charlotte even more. "I found out that you loved Christian from Suri's childhood."

"S.. Suri," Charlotte hissed with emotion.