I'm thinking of ghosting my once-best friend.
Is it because of how your relationship is?
He is so nervous when we hang out and I really don't know if I can take it.
Its fine to realize you are not as good of friends as you used to be. However, ghosting someone is much more mean then telling them you dont want to be friends anymore. If you dont feel you get along great anymore then the friendship will naturally fade.
I'm pretty sure its okay since I'm in the right and he is so pathetic.
Unless they are dangerous, ghosting someone isn't the right thing to do.