Still not decided if I should be an adult about the whole thing and go, or blow him off.
Ehm, you can be an adult and blow him off. You are your own person and as far as I know you have no obligations to these people that used to call themselves friends.
Why would you play and pretend at a wedding and, more importantly, why would you think that's it's the adult thing to do?
Sorry Jeff Ramos, I didn't mean to put words in your mouth, I was just surprised by your remark (that I quoted), especially considering the experiences that you shared about these former (?) friends.
I'm surprised, so that's why I asked all those questions, it wasn't meant to push you in a corner or to put words in your mouth. I'm sorry if it came across as such, but I'm just honestly surprised/intrigued.