User blog comment:Morganaforever/Morgana's reasons/@comment-4135736-20120203092458/@comment-4650675-20120203114201

I agree, Morgana isn't a saint herself, she is to blame as well. However, it was the circumstances that had her agree to be with Morgause. She was pretty desperate during season 2. Also, I don't think she was actually aware of helping Morgause, she must have thought it was a dream when she met her, which resulted in Merlin poisoning an ignorant Morgana. I don't think Arthur and Gwen are to blame either, but I just tried to see them from her point of view.