Invisible, forgotten, why do it?

My 50th birthday was yesterday. Exactly 3 people remembered. None of them family. 2 only remembered from social media reminders. I have 5 sons. None of them remembered. I mistakenly mentioned it being my bday to my middle son last night and his response made me feel bad for having hurt feelings.

I was once called a social butterfly. I was beautiful, had many friends, but life has a way of taking beautiful things and ruining them. I’m no longer social, I have no friends. My children treat me like an inconvenience. I have no other family.

In the world we currently occupy why

Would I want to continue to do any of it?

I’ve never felt more defeated in my life.