Thank you. It was good while it lasted. I am grateful for the time I got.

It is the worst feeling ever to be alone for the first time in ones life and rejected by the only person to ever love me, yeah it sucks. You clearly have a lot of compassion for him but don't neglect your own needs too. Keep your eyes open, you have not known him long and people tend not to show you who they are until they feel comfortable.

Not sure what to say here. Polyamory is tricky and takes a lot of work but not impossible. The problem here (other than personal preferences) is I don't think he is anymore polyamorous than you are, and trying to resolve two very different positions. His ex is a stable force in his life but you are a novelty. New relationships are exciting and different but that feeling doesn't last. My wife of 21 years left me for another man. It happens