Mu Xiangwan read the message and quickly analyzed three strings of information: One, he still didn't believe her words; Two, he had a close friendship with Du Mengxin; Three, he couldn't understand her heart.
Throughout their call, had she said anything about him and Du Mengxin? She just mentioned that Du Mengxin liked him, so she wanted to expose the two of them. His emphasis on explaining was indeed redundant. She didn't doubt him but was just upset about why he completely refused to take her word, even as a suspicion. Couldn't he at least ask about the basis of her suspicion?
If there were absolutely no proof, how could she be so sure that Du Mengxin was involved?
Actually, even Mu Xiangwan planned to explain how Du Mengxin "kindly" lied to her about Wu Meiting having framed her. She believed this point could validate her suspicion but Su Chaoyang's staunch denial made her lose the will to elaborate further.