Let's say that X is a girl who has a deal with Y, she would absolutely get many benefits of that deal after it comes to its deadline. However, there's A, B, and C who are three people that hate X and want to destroy her deal with Y. X doesn't know about their planning until after a while, so she says: "It was a _____ all that time!".
I thought of tri-scheme, but I'm not sure if it fits X's situation.
Any suggestion for a word that would describe X's situation?
1- I found "tri-aggression" and "tri-alliance".
2- I want a term as this one "tripartite aggression", but expressed with less violence.