"Every day I wake up celebratin' sh*t / why? / 'cause I just dodged a bullet from a crazy b*tch!" he raps in the very-NSFW song.
... And it doesn't stop there.
"I heard you got a new man, I see you takin' a pic / then you post it up thinkin' that it's makin' me sick / I see you callin', I'll be makin' it quick / I'mma answer that sh*t like I don't f*ck with you," the lyrics read.
Though Big Sean shouldn't be too angry about the way things turned out between him and the Glee star -- he's now reportedly dating Ariana Grande, 21.
But Grande herself also admitted to having complicated relationship with her exes -- check her out in the video below explaining to ET her comments that her ex-boyfriend actually cheated on her with another guy!