she released an excellent record called Queen in 2018. it slightly underperformed, and missed #1 due to Travis Scott pulling some multi-format fuckery in his second week; at the same time she debuted Queen Radio on Apple Music, where she basically went off the rails in real-time, revealed herself to be a raging narcissist with a seriously fragile ego, compared herself to slave-liberater Harriet Tubman, gave out a lovely "cocksucker of the week" award to various haters, and announced a beef with Kylie Jenner's newborn baby Stormi.
I was a big Nicki stan until this moment, so all of the above was quite TRAUMATIC.
I think she expected a lot of acclaim and success for that album and basically fell apart when she didn't get it.