Simply so, why did Cordelia leave angel?
According to Complex, the feud began when Carpenter didn't tell the creatives about her pregnancy until the last minute in season four. Carpenter returned on the condition that Cordelia would not die in the show. Unfortunately, she later found out that her character was going to die in the episode.
Subsequently, question is, why did Cordelia sleep with Connor? When an all-powerful demon lord The Beast rises from the ground at the place he was born, Connor feels responsible. As The Beast causes fire to rain from the sky in an apparent apocalypse, Cordelia sleeps with Connor to give him some happiness before the end.
Also to know, what happens to Cordelia in Buffy?
Cordelia is behaving in ways which are completely out of character for her, ending with seducing Angel's son Connor and becoming pregnant by him. It's a deeply creepy season for this among many other reasons. Then Cordelia gives birth and lapses into a coma.
Why Buffy was Cancelled?
First, when the WB refused to renew the show for a sixth season, Joss and co. wrote an amazing though depressing way to end the show. But then UPN picked it up. And for a network change that far along in a series, Buffy did surprisingly well, however, they lost a ton of viewers because of how dark season 6 is.
