Good friends are like gold. They do not weather, burnish, corrode or lose their luster.
Keep them and hold them close. They will not be many, therefore they will not be heavy. They are sparse because they are gold.
The rest may be "fools gold". Keep them if they keep you warm.
I agree with @Spicy
on this. Most are living their own lives and it is unlikely that they choose/chose to hurt you.
The close friend that you shared your feelings with during Christmas week? She is either a fool or the fool was you. Sorry, people are cruel. People are selfish. She allowed herself to be photographed with the enemy. That is treason. Colluding with the enemy.-----> She is likely weak. Too weak to pick a side. To pick the moral side. Pictures do not lie. Cowards do when forced to stand tall. She folded and lied....prone.
False consonance? False sympathy? Maybe she gave you lip service....before she gave them to your Ex.
People who are taken advantage of are often self-less. As you were and are no longer.
Gaining self is gaining purpose. Purpose is hope fulfilled.
Let Life's Kaleidoscope play out. All of the images are real....let none be viewed with shock or surprise. It is not your eyes or your mind that create the images....it is your "minds eye" that interpret these things.
Only living things can see.....that is still a great blessing!
Love life and do not eyeball the end of the book. It words are not yet written.
Happy New Year! May it be a happy one for you and yours'.