I can offer some general insights that might be helpful.
When someone continually brings up and tries to hurt you about your past, it could be a sign of deeper issues in the relationship or in your partner's behavior. There could be several reasons why this is happening:
Insecurity: Your boyfriend might feel insecure or inadequate, leading him to try and bring you down by focusing on your past mistakes or shortcomings.
Control: Some people use past mistakes or vulnerabilities as a way to exert control over their partners, making them feel small and dependent.
Jealousy: He might feel threatened by your past experiences or relationships, and expressing hurtful behavior could be his way of dealing with jealousy.
Lack of empathy: Your boyfriend might not understand or empathize with how his words affect you, or he may not realize the harm he's causing.
Unresolved issues: There could be unresolved issues within the relationship that he's projecting onto you and your past.
Manipulation: Some individuals use emotional manipulation as a way to gain power or get what they want in a relationship.
Whatever the underlying reason may be, it's crucial to address this issue and communicate openly with your boyfriend about how his behavior is affecting you. If he truly cares about you and the relationship, he should be willing to listen and work on improving his actions.
Consider discussing your feelings with him in a calm and non-accusatory manner, expressing how his behavior impacts you emotionally. If the situation doesn't improve, and his hurtful actions persist, it might be essential to seek support from friends, family, or even professional counselors or therapists to help navigate the situation and decide the best course of action for your well-being. Remember, a healthy and loving relationship should be based on respect, trust, and support, not on intentionally causing pain or harm to one another.