Has the bad-blood really been boiling since 2010???
According to B. Scott, the answer to that is a big fat YUP!!
But he says Nicki was SUPER nasty to MiMi the whole time, explaining:
"Mariah went out of her way to be nice to Nicki and make her comfortable. [But Nicki was] making faces at her laced with rude comments under her breath."
And when B. Scott told Mariah about all of it, he said MiMi