Professor Qiao clearly wants to find someone who can take care of his daily needs, a nanny to attend to his bedside.
If He Tiantian agrees, wouldn't she be asking for trouble?
Besides these obvious issues, there's also opposition or hostility from the children on both sides.
Not to mention others, just look at Qiao Jianan earlier, didn't she show discontent towards her?!
They haven't even married yet, nor have they touched the interests of the Qiao siblings.
Once they get married, even if the children are no longer in the country, conflicts will arise.
She is clearly Qiao Zhenbang's "savior," and should be receiving gratitude and respect from the Qiao family children.
Yet, because she became a free nanny for Qiao Zhenbang, she ended up being perceived as an old witch, or an evil stepmother!
Tsk tsk, she'd have to be crazy to do something so foolish!
Qiao Zhenbang noticed "He Xiutian's" hesitation.
He also knows that women nowadays are quite clever.
