"You might not have been expecting it, but people need to have these kinds of conversations if they want to make a relationship work," Hopper answers. He and Diane hadn't properly had that conversation and he hadn't realized until it was way too late that he was too afraid to be having kids.

He doesn't regret having Sara. Not for one single second. But he does wish he and Diane had at least talked about his fears and what might happen, because the worst had happened.

"Even though you're way too young to be having kids," he adds, smiling a little to let Steve know he's joking.