Ri was certainly busy last night, because she was forced to break up a small internet beef between her best friend Melissa, and who many people believe to be Karrueche’s best friend, Seiko.

RiRi tweeted, “Melissa T Fooooorde! Stop it!!!”

Meanwhile, Seiko might have taken some of the blame for the nasty message left on Melissa’s Instagram. Seiko tweeted:

Let’s hope these ladies all move on from this. Rihanna, Karreuche and Chris’ relationship is complicated and only they can figure out how to deal with it!