BK, I'd read this and say, unless the rolling eyes whenever he was on during his solo also happened when anyone else went in, what other interpretation than it was meant to try to throw him or make him feel bad while doing his job, or maybe even to make him sick an argument with her.
From the Times article: “Chicago” performers interviewed said that, although they were stunned by Mr. Loeffelholz’s suicide, they were not surprised by the incident that preceded it. Multiple current and former musicians, most speaking anonymously because they feared retribution, said Mr. Bobbie could be intimidating and Ms. Stifelman could belittle or disrespect performers.
“She would regularly be cursing, slamming things, and trash-talking musicians and performers,” said Dan Peck, a musician who previously played the bass and tuba for the show. “And whenever Jeff was on, despite the audience loving him, she would be throwing shade and rolling her eyes.”