The key point is, he couldn't refute it. Although he never officially developed into lovers with Xia Sicai, during those years when Xia Siyu left him, he was indeed a bit close with Xia Sicai. At one point, when he felt there was no longer any possibility with Xia Siyu, he did think about settling for second best, and whether he should accept his family's arrangement to make do with Xia Sicai.
Even though the thought only lasted a moment, he did waver. Although this waver wasn't about love, he couldn't deceive himself.
Of course, later he resigned from school and joined the entertainment industry. Xia Sicai was disappointed, maybe thinking that he couldn't inherit Bosch in the future. Plus, Bo Yi came back and pursued her madly, so the two of them got together. Subsequently, Xia Siyu happened to encounter a bit of a setback, and he smoothly leveraged her predicament and got married to her.
