In a a later episode of Battlestar Galactica (the 21st century re-imagining) Baltar says that angels come to us as images of people we have known and along the way, we find out that the instance of Caprica Six that continues to talk to Baltar is an angel. We're also seeing, throughout the series, the change from polytheism to monotheism and other themes that tend to point toward concepts similar to Christianity or a Judeo-Christian world view.
But early in the series Angel Six (to avoid confusion with the Cylon Six) tries to distract Baltar, to confuse him, to manipulate him, and even, at one point, forces him to do her bidding at the risk of exposing him to the Galactica crew as a possible traitor.
She keeps baiting him, talking about how he's a traitor, and she doesn't do anything to stop him from turning over a nuclear device to another Cylon Six who eventually uses it to destroy an entire ship, killing many people.
In short, a lot of her behavior seems intent on pushing Baltar over the edge and into madness. But that doesn't seem to play into the theology that comes out later in the series.
I know the producers started out knowing where they wanted to end the story, but allowed room to make changes as they went along, but it seems that Angel Six changed her behavior drastically from this seductress style to acting more like a guide later on.
Is there any reason given on screen for her change in behavior, or have the writers and producers made any comments addressing this at all? Or has this big change in behavior basically been left unexplained?