Hi A_Long_ways and welcome...
I'm so sorry you are experiencing such pain. I know it is hard,,there is no pain quite like that of a broken heart. And there are few words to ease your heartache from anyone but her....
In my program we have an understanding that we simply cannot control or change people but we can change ourselves. When you find yourself in the right space...pick a point on your personal horizon and walk to it. By this I mean...create a new journey,,get a job no matter what,,,join a gym,,take a class,,join a team. Just do something different for you.
I know this might sound trivial and silly but actions do change thoughts...and sitting with your present thoughts will only continue to hurt you.
Lenny