*SPOILERS*
In the latest raw, Fu and Zhen are becoming aware of their feelings and the state of their relationship. It's more obvious to Fu while Zhen is still trying to come to the realization that his feelings towards Shen is becoming romantic.
From Chapter 1 up to now, they've only described Fu's relationship with Zhen as something platonic. But as inplied in the raws, Fu doesn't care about how they treat each other, she really wants them to fulfill their role as husband and wife. It only shows that she loves Zhen, or at least, ready to love him more than just being buddies who got married. So, I think it will lead up to a painful scene between them once all dust has settled and Zhen realizes he likes Shen.
Of course, it will be obvious that Shen will choose his daughter's happiness so...
After all this drama get sorted out and father and daughter don't occupy the same body anymore, It's just impossible for them to go back to the son-in-law and father-in-law relationship. Like Zhen Hao and Shen are so deeply connected emotionally, zhen is shen's eyes and yadda yadda they already kissed twice or three times like??? Mr. Shen ofc wouldn't want to interfere in her daughter's happiness but he for sure would be sad as hell to only watch Zhen from a far now. And Zhen cares a hella lot for Shen, would die for him even aaaaaaa just divorce already T_T