This is something we've never seen with our real Barry and Iris. Maybe being inside the speed force (if that's where he is) will do Barry some good. If he actually gets the girl, will he really want to come back?
Barry is back in his mother's arms. But if Joe isn't Joe, then it's more than likely this isn't Nora Allen, either. Is Barry trapped inside the speed force? And what makes it so different?
Iris: Dad, do you really think he's a metahuman? Joe: Well, he got zapped by the particle accelerator and he was unconscious. It was worth a shot. Iris: I gave you that mug!