This might sound crazy, but love is crazy. So lets get crazy...
You still have her filed under girlfriend. That confuses you because that's not what she is.
You can't delete the file, because you don't want to let her go.
Refile her as family, as sister, as twin, as team. You can still love her forever, without being in love with her.
You can move on, she can move on...while not losing each other.
Love her and wish her well. Want her to find a mate that fits her. Want you to find a mate that fits you.
You can have a close and loving relationship, beyond mere lust and ownership.
If you can't change her from "Property" you will be territorial and destroy the bond.
If you can't change her file from "Property" to "Team" you are going to shoot Mr. Right, right in the face.
She will not be interested in being "Team" after you start controlling her life as "Boss".
If you can't change her from "Property" you will have to get away from her and stay away. Bad things happen when your heart tries to own someone that has not given themselves to you.
If you can't change her file from "Girlfriend" and "Lover" your heart will have no room for someone else.
That worked for me. The one I love the most, is also the one I hate the most.
We are nemesis. But we are team. We will always be family.
We actually acknowledged that. We had a private ceremony where we did not marry, but adopted each other.
I introduce her not as my ex, but as my sister. Because that's what she is. And I wish her well.