Neither of us is*
think of the positive version of the sentence and it becomes more obvious it should be is:
“Either of us is going”
Or, to further stress the point, turn it into a question:
“Is either of us going?”
The subject is not us, it’s “either of us”, which is singular
Problem is: “Are either of us going” sounds right too.
Either is not always singular - Either the Red Sox or the Yankees are going to win tonight, not Either the Red Sox or the Yankees is going to win.
is anyone ever even really on their way to anything?
💀🏴☠️
Or you can both go and have some fun
I think a mean girls “get in, loser” style death is still mostly unexplored