Su Yunjin told Gu Ya that it was Aunt Song who had informed her.
After realizing this, Gu Ya briefed his young wife on the rough situation when he went to the old Gu Family house to find Gu Jianghai, "Yunjin, don't worry! Jianghai is fine, he just sustained minor injuries on his arm when Tiezhu accidentally cut him with a knife. The doctor has already applied medicine to the wound, and it shouldn't take long to heal."
Since Gu Jianghai's injuries were not severe, Su Yunjin also felt relieved. Gu Ya then told Su Yunjin that after Jianghai was injured by Gu Tiezhu, Tiezhu had fled and his whereabouts were unknown.
He hadn't returned to the old Gu Family house.