There's another stretch of silence. It's not so much Optimus is giving her the silent treatment, as he's trying to decide how to express his thoughts in words. It isn't easy, and he's distinctly aware it may be because Mikaela is human. Certainly, she is a friend, but his latest experiences with them have colored...

He exvents again, rubbing his face. Awareness of a bias can not always remove the bias, but it can help.

"Nor am I attempting to be difficult. I am still trying to sort out recent events and those which are occurring now. Forgive me," he adds, looking down at her. "It is not any fault of yours."

His bad, and he is trying.