I'm going to gatecrash a friends party after being purposely bounced around from person to person instead of being told not to go
Why would you want to do that?
They knew I wanted to go but even then they didn't invite me
You should not go to something you were not invited to. You may harm your friendships if they see you there and have to throw you out.
I'm going anyway.
I really have to advise against showing up in person, as this will just make it more difficult for everyone, including yourself.  Reach out to the host in private and ask directly why you weren't invited, and hopefully, you can let them know that it upset you.