DP I am so sorry that you are still struggling with this. I do not think there are any ethical treatments that will ever "erase" your memories.

Although it has been slow going for me due to DID and years of trauma, EMDR seems to be a good option for you. It appears that this termination has really traumatized you. My T has always stated that it will not make you forget your trauma; you will always remember it but EMDR takes the pain out of the memories. It may be worth a try. Hopefully it could help you remember him in a realistic, positive therapeutic sense and take away the pain and longing of seeing him again some day.