I feel like Professor Zhou could benefit from a double-blind test where one research lab employs Shen Wei and one doesn't. The fact that Shen Wei is always mysteriously heading out for "coffee" or otherwise absent from his desk might cool his optimism. *g*
LOL! Sounds hilarious. Or perhaps Professor Zhou would go all relationship advice on his prize cabbage and tell him to break up with the buy who's such a distraction? :P

I think he'd have been fascinated and immediately asked for blood, hair and tissue samples. /o\
I am imagining him wheedling Shen Wei with the magic words "For Science!" and Shen Wei crumbling under the pressure. *g*

Maybe Professor Zhou decides to retire, to save his dignity (and in some disgrace after having been involved in the serum project)? Or maybe he just accepts that the older you get, the younger your manager will seem, and the difference between a twenty-something and a forty-something isn't that great, really. Maybe he even takes her under his wing a little, in Shen Wei's absence.
Both very plausible! I suppose he might go to some other projects back at the University or something, or take his student's student under his wing and then cheer her on as the director.