There can be several reasons why your ex-boyfriend apologizes after 5 months. Some possible explanations could include:
Self-reflection: After some time has passed since the breakup, your ex-boyfriend might have had the opportunity to reflect on his actions and behavior during the relationship. He might have realized that he made mistakes or hurt you and now feels genuinely sorry for his past actions.
Emotional maturity: People can undergo personal growth and development over time. Perhaps your ex-boyfriend has matured emotionally and now recognizes the importance of taking responsibility for his past behavior and offering an apology.
Regret and remorse: As time goes on, the initial emotions after a breakup may settle, and your ex-boyfriend might have begun to feel genuine regret and remorse for any pain he caused you. Offering an apology could be his way of seeking forgiveness and making amends.
External advice or influence: Sometimes, friends, family members, or even therapy can help individuals see the impact of their actions and encourage them to apologize and make things right.
Reconciliation intentions: An apology might be a precursor to your ex-boyfriend wanting to rekindle the relationship or at least open up the possibility of being friends again.
Clear conscience: Some people find it hard to move on from a past relationship without resolving any lingering guilt or remorse they feel about their behavior.
Closure: Apologizing could be a way for your ex-boyfriend to find closure for himself, even if the two of you don't plan to reconnect.
Remember that an apology doesn't necessarily mean you have to accept him back into your life or reconcile. It's essential to take the time you need to process his apology and consider your feelings and well-being before deciding how to respond. If you're not ready to engage with him or feel it's not in your best interest to do so, it's perfectly okay to prioritize your emotional needs and boundaries.