Su Yang was well aware of Fang Family's intentions, but he couldn't just ignore the fact that Wang Hao had been injured. Therefore, despite knowing he was being used by the Fang Family, he still needed to settle his issues with the Wan Family.
After leaving the Fang Family, Su Yang immediately called Fatty to inquire about Wang Hao's situation.
Over the phone, Fatty was hesitant and kept telling Su Yang to come back before discussing it. Eventually, pressured by Su Yang, he explained Wang Hao's condition.
The situation was much like what Fang Mingyuan had described: Wang Hao had been nearly crippled, his legs broken, forced by Wan Family's people to kneel and kowtow with their foot on his head.
And this incident had already happened a week ago.