And now, his deliberate stabilization of Song Ya Lan shows that he also has feelings for Song Ya Lan, and probably likes the background of the Song Family. After all, the Song Family is now the largest aristocratic family in Yu State. If they could rely on the Song Family, they wouldn't have to worry about the future.
So Yi Ling guessed that Master Mu's thoughts might have been to let Ji Xinhe have a child first, and once the child is born, divorce his wife and marry Song Ya Lan. But Song Ya Lan would certainly not tolerate that child, and she can't wait either.
However, Song Ya Lan didn't think so deeply. Her mind was always confused, and now Master Mu instilled so many bewitching potions in her that she would rather deceive herself and believe that Master Mu was entangled by his troublesome wife, so the divorce did not happen.
Yi Ling didn't have to break it, just echo it, "Lady Mu is really going too far!"