[ "deeply unhappy" being boardroom speak for "totally miserable". leave it to mitsuru to be charitable to a previous business partner even after being outed as a jerk of the highest order.

yukari leans forward and rests her elbows on her knees, propping her chin in her upturned palms. ]

Well, yeah, that makes sense. Who didn't? [ which, now armed with the power of hindsight, she realizes was probably more to kotone's detriment than anyone could have foreseen. ] And when you hang out with someone a lot, it's only natural to open up about something that's bothering you.