Why Did NiNi And Monica Spears Have An Argument?

Monica spears is one of PSR's top selling artists and she makes the label tons of money, but you rarely hear of her in drama but today that changed as a very reliable source says that she and NiNi got into a heated argument. We don't know who started it or what it was about but we do know that the two argued they didn't fight but it could've turned into that if Miranda and Tina hadn't broken them up. Sources say that Monica isn't suspended but NiNi is severely pissed off with her for some reason, but we don't know why yet, but when we find out we will let you guys know! No beef here though just an argument so please guys, don't start!