She did fucc it up. They broke up because she was messing with Justin Beiber while her & Big Sean were still dating:
Skip to the 3:46 mark:
Also I remember Ariana's Dad threatening Big Sean on Facebook, right before they broke up, because Big Sean alluded to smashing Ariana in a rap lyric.
I'm not sure if Big Sean is still dating Jhene Aiko or not. If they aren't together, Big Sean & Ariana would make sense.
I guarantee you he would get a lot more hate than when he dated her the 1st time. We in the (fake) Woke Era now & If you followed Aretha Franklin's funeral on Twitter a few months ago, it's a clear a certain group of women have Ariana in their crosshairs.