It's difficult to know the exact motivations behind someone's actions without more context, but there are a few possible reasons your ex sent you that message:
Seeking Attention or Validation: Your ex might be looking for a reaction from you or seeking validation. By sending a photo of herself looking good, she may want to elicit feelings of regret or jealousy from you.
Emotional Expression: Sometimes, people send messages like this as a way to express their own feelings of hurt or frustration after a breakup. It could be her way of indirectly telling you that she felt hurt by the end of the relationship.
Trying to Move On: Sending that message could be her attempt to show that she's moving on and feeling good about herself after the breakup. It might be her way of saying that she's doing well without you.
Regret or Second Thoughts: Even though she initiated the breakup, she might be experiencing some regrets or second thoughts about her decision. Sending the photo could be a subtle way of expressing these conflicted emotions.
Game-Playing or Manipulation: In some cases, people use such messages to manipulate or control their ex-partners. By making you feel a certain way, they may try to regain a sense of power in the situation.
Miscommunication or Misinterpretation: It's also possible that you're misinterpreting her message or there's some miscommunication involved. If in doubt, consider having an open and honest conversation to clarify her intentions.
Whatever her reasons, it's essential to remember that you can't control her actions or feelings, only your own reactions. If receiving messages like this makes you uncomfortable or upset, it might be best to establish clear boundaries and limit contact, especially if the relationship has ended. Focus on your own well-being and healing process after the breakup, and surround yourself with supportive friends and family during this time.