There can be several reasons why your ex still reads your messages but does not reply:
Mixed Feelings: Your ex might have mixed emotions about the breakup and reading your messages allows them to stay connected in some way without fully committing to responding. They may still care about you but are unsure about their feelings or what they want from the relationship.
Avoidance: Responding to your messages may bring up difficult emotions or memories, and they might be avoiding dealing with those feelings. It's often easier for some people to keep a distance to protect themselves from potential emotional turmoil.
Not Ready to Move On: If the breakup was recent, your ex might not be ready to move on emotionally. Reading your messages could be a way to hold onto the past or keep tabs on your life without actively engaging.
Communication Style: People have different communication styles. Some individuals are more comfortable with constant communication, while others prefer space and silence. Your ex may be the type who prefers not to engage in conversations after a breakup.
Boundaries: They might be trying to set boundaries by not responding to your messages, especially if there's a possibility of ambiguity about the nature of your relationship.
Seeing Other People: If your ex is dating or seeing someone new, they may feel it's inappropriate to respond to your messages out of respect for their current partner.
Decision to Move On: Your ex may have made a conscious decision to move on from the relationship, and not responding to your messages is a way to create distance and closure.
Busy or Distracted: It's possible that your ex is simply busy with other aspects of their life or is distracted by other priorities, making it challenging to respond to your messages promptly.
Regardless of the reason, it's essential to respect their boundaries and allow them the space they seem to be seeking. If you want closure or have concerns about the lack of response, consider having an open and honest conversation about it. However, remember that you cannot force someone to engage with you if they are not willing to do so. It might be helpful to focus on your own healing and well-being during this time.