This is my personal take (and just to be clear, English isn't my first language either), but "you've been looking troubled since this morning" sounds better - "been looking" implies the state of troubledness is still ongoing.
People are out here calling Kusunoki boring when it's been hinted at that there's stuff we don't know about (yet). The little tomboy said she changed severely between when they saw each other in elementary school for the last time and meeting again in high school. And it's been patently clear...
Casting the subtext about the age gap aside...
I felt that. Getting up in age is scary, especially when it comes to romance - and worse, being inexperienced in romance.
On the one hand, we knew they were going to get back together.
On the other, the journey is (usually) more interesting than the destination and that journey was cut woefully short (yes, yes, this is an adaptation blah di blah di blah, there's certainly worse out there).
So she prattles on about "geniuses ruling over those beneath them", does fratbro-level hazing rites for new employees and steals someone else's work with just enough legal distinction to make it pass off as her own?
Yup, she's your average tech CEO.
I mean, I talked about this before, but the Tokio/Chi relationship needs someone to push it forward, whether it's Tokio or Chi, but both parties here are in the same position as Seto and Toyoda were in the beginning of their respective relationship and that's stopping them from moving forward.
I mean, it's a timeskip epilogue. The majority of the story takes place in winter and this chapter is set in spring.
Personally glad that it ended and that it ended like this. Shiika gets closure for herself and maybe the guilt she felt will fade over time. MC probably finally has the ability...