Over the weekend, rappers DDG and Rubi Rose hosted a battle of the exes on social media that ended with name-calling, DM reveals, and Halle Bailey stepping in. Things got spicy with ex-girlfriend Rubi Rose after she seemingly threw a jab at DDG and Halle via Twitter. The Big Mouth rapper tweeted, “having your b***h where my clothes is crazy lol.” People on-line speculated her tweet was about Halle…