If you thought Amanda Bynes' recent arrest might have tempered her crazy behavior a bit, well, you were wrong. Yesterday morning, Bynes tweeted at Rihanna—for no apparent reason—"Chris brown beat you because you're not pretty enough," and followed that up with the even more poorly-written, "no one wants to be your lover so you call everyone and their mother that I almost named my new dog Rihanna." The tweets were quickly deleted, TMZ reports, but Rihanna already knew about them, and offered this spectacular retort: "Ya see what happens when they cancel Intervention?"
Bynes, of course, couldn't let that lie; she replied, "unlike ur fugly faced self I don't do drugs! U need the intervention dog! I met ur ugly face in person! U aren't pretty u know it!" (We're just speculating here, but Bynes has sort of a thing for Drake and Rihanna has been romantically linked to the rapper in the past, so perhaps that's the problem?) Bynes has also been ranting against the media, the police, and even her parents on Twitter (she claimed her family has been stealing her money, Perez Hilton reports). As for her arrest, she tweeted that she threw a vase out her window, not a bong, and accused the police officers who arrested her of sexually assaulting her. The NYPD is actually investigating that claim, TMZ reports. (Read more Amanda Bynes stories.)