Her body is afflicted with a certain curse. Thus, night after night she has to slurp up men's 'essence'.[1] Thus, she'll never stay with a particular man, and she just repeats one night stands over and over again. I've heard that she's given birth before. She wouldn't tell me what happened to those children. It's possible that she just abandoned them here or there, or sold them into slavery. In reality though, she hardly ever becomes pregnant, so it does seem that she raises them properly until they're independent though.