Not only did Dent's past change, but she also changed her name and, indeed, her continuity! Duela Dent also went under the name of Mary Jane Watson, in her attempts to not only gain complete and utter domination of Gotham City but also to bed Peter Parker in addition to Bateman. I don't think any of us can really, truly understand why this particular firecrotch decided to stoop to the level of men such as Bateman and Peter Parker. Well, Bateman wasn't really a man. He was more of a... pencil. She did see the error of her ways, however, and ran away from Bateman and the child of hers and his. She was so desperate to escape this life that she even jumped continuities to escape him, taking on the name of Mary Jane Watson!