Back in Season 3, there was an episode with the same title, when Alexis tried to force a merger between Denver-Carrington and ColbyCo.
Krystle is sympathetic to Amanda's regret over her affair with Dex. Krystle too was guilty of such an act, having had an affair with Matthew Blaisdel back in Season 1 when he was still married to Claudia.
We learn that Clay Fallmont's name is not short for Clayton but for Clayborn, his father's middle name.