I loved the final scene with Roy and Carla, but seriously, could she not have disposed of his coat further away from the factory? I know she didn't expect Roy to go rooting through the skip but there's plenty of other ways she could have kept it a secret, maybe getting his coat dry cleaned after pretending she had spilled something on it? And why did Seb see Carla putting stuff into her car when she was only bringing Roy's stuff to the Underworld skip?
Having said that, it marks the start of a new, more difficult phase in their friendship and I think they will both be able to carry it off.