That sudden question coming out of Jasper's lips made Theo think that his ear is quite good to hear her whisper but at the same time she wondered about his heavy expression. She wondered whether she did something wrong and relaxed rather then flailing to get away from his hand.
"What's wrong with you? Why are you so mad?" she asked.
He left her collar and fumed hearing her question, 'Be glad that I am not revealing your disguise to keep your father and you safe or else forget about love, you could only see blood and in the end, the rails of prison'.
He was keeping his mouth shut even though he have come to find out about her disguise and gender since if it comes to light, her father would end up getting executed and she would end up losing everything including the Castillo family reputation and assets.