I feel abandoned by all my friends after a break up
Is this because of an event that happened in the past?
My boyfriend used to be my best friend until he broke up with me.
It makes sense that this is a situation that makes you upset. Breakups can separate friend groups just as they do the couple. Try to reach out to your friends and let them know that you need them.
I decided I just don't need them, they are the ones who made me sad. I can always find new friends. It still makes me sad though.
You are right being sad, they were once there for you and not anymore. It can't make a person feel good. Perhaps one day you can find a new group to hang with as you said.