[Jack would absolutely remember her if he left.]

Why on earth wouldn't they let us stay in contact? And even if they wanted to stop us... [He taps the wide leather strap of his wrist computer round his left wrist.] This thing's pretty good at finding people even across different times and dimensions, so you know. You give me your cell number - your normal one, not the one they gave you here - and I can call you from pretty much anywhere!