It's important to remember that I cannot know the exact motivations or thoughts of individuals, but I can offer some possible explanations for your situation.
Habitual behavior: Your ex may have developed a habit of checking your social media, especially if it was a regular part of their routine during your relationship. Even after the breakup, this habit might persist out of familiarity.
Curiosity or longing: Despite saying she wants nothing to do with you, your ex might still have feelings of curiosity or longing. Checking your social media could be a way for her to stay connected or to see how you are doing without directly engaging with you.
Jealousy or insecurity: Seeing your updates and interactions on social media might trigger feelings of jealousy or insecurity in your ex. Social media can amplify such emotions, even if they are irrational or not based on reality.
Coping mechanism: Some people stalk their ex-partner's social media as a way to cope with the emotions and pain of a breakup. It might be a form of seeking closure or trying to make sense of the situation.
Regret or remorse: Your ex may feel regret or remorse over the breakup, and checking your social media could be a way for her to keep tabs on your life and see if there's any chance of reconciliation.
Loneliness or boredom: If your ex is feeling lonely or bored, browsing social media profiles, including yours, might provide some temporary distraction or entertainment.
Regardless of the reasons, if you are uncomfortable with this behavior, it's essential to establish boundaries. Consider adjusting your privacy settings on social media to limit what she can see, and if you feel comfortable doing so, you could communicate your feelings about the situation to her directly or through a mutual friend. If the stalking persists and becomes harassment, it's crucial to seek support from friends, family, or even legal authorities, if necessary. Your emotional well-being is essential, and you deserve to feel safe and respected online.