Ye Wei responded to the rumor by not hearing about it, bothering about it, or asking about it. Somebody officially challenged her, but would she really take on her competition? Her competition, after all, had elevated Mo Jue's position in her heart, no?
The Elders' Court had an extremely tense relationship with Mo Jue and they had just had a huge fallout earlier. The daughter, suddenly reappearing and playing the sentimental card, was clearly, from the elders' POV, a bid to displace Ye Wei with their daughter so that the former would be unable to actively involve herself in the Mafia's matters. Even if she couldn't marry Mo Jue, she would be able to sow discord between Mo Jue and Ye Wei at the very least.