They never removed your Powered Armor Plating underneath your clothing, which possesses a strong anti-magic field. This was a special creation in the testing labs for the deadly mission, so You had no certainty that it would or even could work, but when her sword came crashing down on your armor, the field crackled, exploding, and the blade was thrown out of her hand like a Frisbee.
"I-it must be a sign from Heyla!" She cried. "B-but how can a HUMAN be worthy of her attention?" She stammered for a moment, before bowing to you.
In the coming weeks, despite your protests, you became her idol and "Holy Lover" as she proclaimed (not that you were complaining, even if your wife's new "Chosen One" cult is kinda freaky.)