I love that scene:
(http://www.dsboards.com/eventimages/1231ds_5.jpg)
Ep #917 - Liz icily asks a (faking to be) sleeping Paul what made him think she wanted him back.
And I think it's one of Joan Bennett's best. Say what we will about Leviathans (and we often do - at least about the final weeks of it) but Bennett was definitely one of the actors who most benefited from that storyline because she was lucky enough to get some great material to work with.