There could be various reasons why your ex blocked you on Instagram even though you haven't had any contact for two months after the breakup. While I can't know the specific reason without more information, here are some possible explanations:
Moving on and healing: Your ex might have blocked you to create some distance and emotional space to heal from the breakup. Seeing your posts or updates on Instagram could have been emotionally challenging for them, and blocking you was a way to protect themselves.
Avoiding temptation: Blocking you may be a way for your ex to resist the temptation of reaching out or checking your profile. It can be challenging to move on if reminders of the past relationship keep popping up on social media.
Boundaries and closure: Blocking you could be their way of setting boundaries and achieving closure. They might believe that cutting off all forms of contact, including social media, is necessary for their well-being and personal growth.
Emotional reasons: Your ex might still have lingering feelings or unresolved emotions related to the breakup. Blocking you on Instagram may be a method of coping with these emotions.
Negative emotions: If there were any negative feelings or conflicts during or after the breakup, blocking you might be a way for your ex to distance themselves from those emotions.
Pressure from new relationship: If your ex has entered a new relationship, their new partner may have influenced the decision to block you as a way to avoid potential jealousy or insecurity issues.
Misinterpretation of posts: Sometimes, people might misinterpret or overanalyze social media posts, leading to discomfort or unease, prompting them to block or unfollow.
Privacy concerns: Your ex might want to keep their life more private, and blocking you is a step in that direction.
It's important to remember that everyone handles breakups differently, and their reasons may not always be apparent or logical from an outside perspective. If you find yourself struggling with the aftermath of the breakup, it might be helpful to focus on your own healing and well-being rather than trying to decipher your ex's actions. If you're finding it particularly challenging to move on or cope with the breakup, consider seeking support from friends, family, or even a mental health professional.