"Learning to be human is...difficult." It is clear from the expression that crosses his face that there was likely some 'trial and error' involved with his attempts to do so. "It took me some time. Also...my world..."

He has to pause and think hard to try to pull those memories back to the front of his mind, and what he manages with the effort is nothing but crackles of static and sparks that fight back like sticking a fork in a light socket. He huffs, mildly irritated.

"Was complicated." Was, not is.