Just as Mu Jianyu said, he continued to visit Li Chuntao, still not recognizing her as his sister-in-law and not his wife. Li Chuntao initially thought that the man would come to his senses once he was sober enough to look at her without the alcohol affecting him but once again, Mu Jianyu failed her.
He still believed that the woman in front of him was his wife, Li Xiuying, and not his sister-in-law. How was he supposed to know that it was Li Chuntao when he'd never even paid any real attention to his wife before. Otherwise, even if he doesn't recognise Li Chuntao, he could have at least noticed that she wasn't Li Xiuying.
Li Chuntao tried her best not to roll her eyes at his stupidity. How can he be so dumb? No wonder Gu Changge managed to fool him to this extent. If he wasn't this stupid then they wouldn't have lost Li Xiuying this early. The mere thought of her sister's pain was enough for her blood to boil.