In a word, she was UNDER the PROTECTION of the Holy Ghost,
I'd think she was never tempted. Satan never dared touch her because of the Holy Ghost's protection, Who put enmities between her and satan. Gen. 3:15: "I will put Enmities between thee & the woman, and thy seed and the seed of her: she shall bruise thy head in pieces, & thou shalt lie in wait of her heel."
There can be no virtue without temptation.