Anonymous
Hello there
Thank you for sharing your issue with us here. It may help other people going through the same situation.
Many times experiencing a break-up can be similar to experiencing emotional trauma. The separation from the person may result in the feeling of a void as the two people involved in a relationship are crucial parts of each other's lives and so reconnecting to a life where they are absent may be a difficult and painful process.
Sometimes, in the process of going through this phase, we may unconsciously use some methods as a 'defense mechanism' such as the one you may be experiencing which may be like 'black-outs. It may be an attempt to shield us from the pain and to do it by avoiding the memory of incidents or people which may result in pain or hurt.
However, every relationship is personal and may have its own personal elements just like yours and they need to be understood and dealt with respect to their own requirements.
To understand and work on your individual situation you may seek therapy with a professional who is empathetic to your situation and supports you in processing and coming out of the situation stronger and empowered.
Hope it helps
Be Well :)