Ariadne: Are these the 'experiments' you do every night? You're trying to keep her alive, aren't you? You can't just create a prison of memories. Do you really think that could contain her?
Cobb: You were not supposed to see that! This has nothing to do with you!
Ariadne: Nothing to do with me? We're supposed to be sharing dreams, here!
Cobb: Not these. These are my dreams.