Coupling - Season 3 Episode 3 : Unconditional Sex 2004

Jeff is still trying to decide whether he should cheat on his girlfriend Julia with Wilma, or not. While his friends try to help him, Jeff is no match in this debate for "devil woman" Wilma. She knows every argument that Susan (the expert in getting her own way) has ever used. Jeff paints himself into a terrifyingly extreme conversational corner, until he blurts out that the reason he can't have sex with Wilma is that his girlfriend is dead...