@Wolfgirrl And on what evidence you would say they were completely blameless? For someone who has apparently been reading up a lot on Anne Boleyn, you seem to be overlooking the fact that Henry is well documented as having been completely besotted with her at the beginning (and the fact that her name is spelt with an e at the end). He beheaded her after just 3 years of marriage, losing interest when she didn't provide a male heir; only Elizabeth, and several miscarriages. Hardly time to give it a real shot, given the recovery time needed between each pregnancy.
He beheaded wife no. 5 Katherine Howard after she allegedly slept with her cousin = high treason when you're the King's wife. Henry was never going to let that slide, innocent or not - the damage to his reputation was too great. She was 17 when they married and 19 when she died. So I don't see her as being a great schemer.
Of course Henry and Edward only listened to themselves in the end, but both caused an almighty amount of constitutional upheaval for the sake of the women they were lusting after. Would they have gone to all that trouble for women who had spurned them from the outset? Wallis was already married, don't forget. She could have stayed married if she'd really wanted an excuse for Edward to leave her alone.
Anne and Wallis will always take some blame for their husbands' actions, because they WERE ultimately the reason for it, passively or otherwise. I just don't happen to believe they were passive.