Sometimes Oliver was a fucking idiot. Sometimes he didn't think. The fact he'd forgotten the context surrounding the last time Iris had used her powers to manipulate time was an honest mistake. Surely no one would expected him to remember all the details of something like that when it didn't apply to his own family... that alone was hard enough.
Except they would, and he should have. Stupid, stupid, stupid, he berated himself. The poor girl had been manipulated into killing people, for God's sakes! It had left her traumatized.
(God, Barry was going to kill him, if Wally didn't first. And Dinah... Dinah would have murdered him on the spot for forgetting.)
There was a quick non-verbal exchange between Oliver and Mia as Iris began to wail in earnest, becoming incomprehensible where Oliver indicated that the teenager should take Lian elsewhere and entertain her while he consoled the young speedester.
First he needed her to calm down before she accidentally hurt herself.
"Irey, listen to me. I know you're sorry. I'm sorry too. I'm a complete idiot. But I need you to breathe. You're going too fast, and you need to slow down, okay? Just breathe. Just focus on what I'm saying and take deep breaths."