Hannah didn't really know what to believe. Maybe Michael really did somehow magically cross that barrier from one world into another where their son still lived.
She didn't want to know. She couldn't stand to know, because she was completely cut off from it, and it hurt too terribly much.
She wondered sometimes why Michael was so much stronger, but he was the one who got to hold Rex and tell him he loved him one last time. "You're the last part of Rex I have," she'd told him. If she was ever brave enough to use that bridge again.
Tell him I love him.