If your ex is still texting you and talking about your past sex life, there could be several potential reasons for this behavior:
Emotional Attachment: Your ex might still have emotional attachments or unresolved feelings towards you, and discussing your intimate past could be a way for them to maintain a connection or feel closer to you.
Nostalgia and Missing Intimacy: They could be reminiscing about the intimate moments you shared, missing the physical connection, and using it as a way to cope with the loss of the relationship.
Seeking Validation: Discussing your sex life might be a way for them to seek validation or reassurance about their attractiveness or performance during the relationship.
Manipulation: In some cases, talking about intimate topics can be a tactic used to manipulate or control the other person, evoking emotions or creating discomfort.
Attempt to Rekindle the Relationship: By bringing up your past sex life, they may be trying to remind you of the positive aspects of your relationship and potentially reignite feelings.
Inappropriate Boundary Crossing: Some individuals may have difficulty respecting boundaries, and discussing intimate details after a breakup could be a sign of this issue.
Lack of Closure: If the breakup was sudden or the issues in the relationship were left unresolved, they might be trying to process the emotions surrounding it by revisiting past experiences.
Regardless of the reasons, it's essential to consider how this communication makes you feel. If you're uncomfortable or think it's not appropriate, it's okay to set boundaries and let your ex know that you'd prefer not to discuss such topics. It might be helpful to have an open and honest conversation about your feelings and clarify the nature of your relationship moving forward. If the behavior continues and makes you uncomfortable, it might be best to limit or cease communication altogether for your emotional well-being.