Karrueche Tran broke up with Chris Brown during his stay in rehab. 

According to TMZ, the 25-year-old model/socialite visited Brown last month at rehab and read some inappropriate text messages from random girls on his phone. Tran was reportedly pissed at Brown because she had been so supportive of the singer throughout his court cases, anger and substance abuse issues and his bi-polar disorder. 

Tran and Brown had been dating on-and-off for four years, but had recently taken their relationship to a more serious level. 

Tran recently denied rumors on Twitter that she was dating her friend's ex-boyfriend, Brandon Jennings.

Back in 2009, Brown was arrested after he got into a physical fight with Rihanna after he received text messages from another woman. After the altercation, Rihanna was left with a bruised face and serious facial injuries. 

Currently, Brown remains on probation over the assault and other violations. He was most recently ordered stay in jail until April 23 after getting kicked out of rehab. 

The judge said Brown has an "inability to stay out of trouble," and was mostly concerned with a statement he made at rehab when he said, "I am good at using guns and knives."

Meanwhile, Brown's lawyer Mark Geragos has been pushing to pay the victim involved in his D.C. assault. Source said Geragos is planning to offer the victim a lot of money to drop the criminal case involving Brown.