I also wanted to add that I wasn't trying to diminish or ignore the grief you are feeling. I myself still feel grief from time to time but the real turning point for me was learning and understanding how to deal with the grief and sadness in tandem with my own growth.
I used to hold it all in which eventually led to me becoming very ill both emotionally and physically. Now I know it's okay to say to myself or somebody within my support system "hey, today I feel sad and I know I can work through it". Every so often I shed a tear or feel a pang of sadness, betrayal or a deep sense of grief but I have learned to counter those feelings with positive ones while not ignoring them. It was a very tricky balance for me to learn and I do believe it is a learned skill.
While I had a terrific support system and a master of an attny I am really proud of myself that I finally realized I had to be happy on my own first and did not rely on another intimate/romantic R to get me through. That is not to say I didn't meet new people and enjoy it and open myself up to any possibility but I really needed to prove to myself I would be okay. And I think I am on my way! And I know you will be walking that same path very soon.
