Dreams involving themes of saving someone, particularly a figure that embodies both danger and allure, can be quite complex and rich in meaning. Here are some interpretations and insights into your dream:

1. Duality of Good and Evil: The female demon in your dream may represent a part of yourself or an aspect of your life that you find both attractive and threatening. Her dark features and pained smile could symbolize hidden fears or desires that you are grappling with, highlighting the struggle between embracing certain aspects of your personality and fearing their potential consequences.
2. Protection Instincts: Your decision to save and protect her suggests a strong sense of empathy and a desire to help others, even those who might be perceived as dangerous. This could reflect your real-life tendency to assist or defend individuals who may be misunderstood or judged harshly, despite their flaws.
3. Fear and Attraction: The dynamic of feeling both fear and attraction towards the demon indicates an inner conflict. You might be facing temptations or situations in your waking life that are enticing but may lead to negative outcomes. This could relate to relationships, personal choices, or even emotional struggles.
4. Symbol of Lust and Desire: The moment when she asks if you like her body points towards themes of lust and desire. It could signal an exploration of your own sexuality or thoughts surrounding intimacy and the complexities that come with it. Ignoring her could reflect a conscious decision to resist temptation or a recognition of the potential consequences of giving in to those urges.
5. Fighting in Darkness: The battle you engaged in while protecting her suggests that you may be confronting challenges or conflicts in your life, particularly those that are shrouded in uncertainty or negativity. It could signify a journey of self-discovery where you are learning to navigate through darker aspects of your life while still attempting to maintain compassion and support for others.

Overall, this dream seems to encapsulate a journey of self-exploration where you are grappling with the complexities of desire, protection, and the duality of human nature. Reflecting on your current life situations, emotions, and relationships may provide further clarity on the underlying messages of this dream. Consider what aspects of your life feel like a battle between light and dark, and how you can navigate those with awareness and balance.