Chris Brown and his mom, Joyce Hawkins, are reportedly in a Twitter war after the singer unfollowed his mom on the social networking site.

According to Bossip, a source close to the singer claims that Brown and his mom have been feuding because of his erratic behavior. The source alleges that the "Fine China" singer's drug problem and his entourage are worrying the family, especially Hawkins. Reportedly that is also why Rihanna ended the relationship.

"The real reason Rihanna left wasn't because of any female," the source said. "It was because Chris' crew, who he refers to as OHB are not good people. He wouldn't get help for a drug problem, so she gave him an ultimatum and left."

Brown's on-again, off-again girlfriend Karrueche Tran is said to be a part of OHB, which stands for Original Hood Brothers. The group is Brown's childhood friends he hung with before he got famous.

According to Bossip, after Brown unfollowed his mom on Twitter she asked her followers not to tweet anything about OHB to her.

"She's fed up with Chris' crew and when Chris came home for the first time last month, they completely disrespected her and he was high as a kite," the source said. "She doesn't know what else she can do for him. They've tried to get him help and his drug dealing/gang banging friends keep supplying him with more drugs. He's alienated his family and people who truly car about him for yes men and women who keep him high enough to use him."

The source also said the singer's music career could be in jeopardy if he doesn't get his act together. Over the weekend, Brown and his bodyguard were arrested after allegedly getting into a physical altercation with a man at a nightclub in D.C.

After appearing in court his charges were dropped from felony assault to a misdemeanor simple assault. According to NBC Washington, Brown's mother was by his side as he left the courthouse Monday evening.