If Jiang Zhengwei hadn't saved his life back then, he wouldn't have arranged for his younger daughter to marry him as a way of repaying the life-debt.
If his younger daughter hadn't been married to Jiang Zhengwei, she wouldn't have died alongside him in Jiang City.
She got married early, married Jiang Zhengwei at nineteen, and died in her early twenties in Jiang City.
He was so distraught that he nearly suffered a heart attack, and it was only when he brought Xie Yunlin and his brother Xie Jinfei to his side that he felt somewhat better.
He failed his younger daughter.
So, he fought with the Jiang family without any regard to seize custody of Xie Yunlin and Xie Jinfei.
His intentions were good.
Xie Yunlin and Xie Jinfei were orphans, with nobody looking out for them. He feared that the brothers would be bullied.