I don't know about that.
A year ago Iggy did an interview with Charlemagne and the Breakfast Club and he asked her about Nicki, and Iggy flat out said, "I respect Nicki. I'd collab with her in a second and anybody who says they wouldn't is a damn lie."
Iggy definitely had a lot of respect for Nicki not too long ago. Things changed when Iggy got her #1, tho. A lot of Nicki fans popped shots at Iggy on Instagram, and she fired back, but I don't think she said anything about Nicki herself.
Really, Nicki just kind of comes off as bitter in this whole thing. She was supposed to be the next big crossover female rapper, and Iggy kinda came out of nowhere and took her spot. Hell, I've been a big fan of Iggy's since her first mixtape (she's NOT bad as far as Pop/Rap goes), but even I wasn't expecting her to get THIS big. Nicki is definitely pressed.