Karrueche Tran reportedly thinks ex-boyfriend Chris Brown is ranting against her and his former love interest Rihanna because both of them refused to reunite with him, according to a report. The report comes after Brown feuded with Tran’s manager over the weekend.

“He [Brown] can’t get her back so he do what he does best take out his anger on her,” sources close to Tran told Urban Islandz. “He can’t get back Rihanna and he can’t get back Karrueche so he resort to bashing them and let his fans troll them on social media. [sic]”

“If that is not the case of a bitter ex then I don’t know what is,” sources told the entertainment website. “Karrueche still love[s] and care[s] about him but she will never get back with him unless he change[s] his attitude and deal[s] with his anger.”

The 26-year-old singer reportedly got into an argument with Tran’s manager Jacob York on social media. Brown reportedly called York a “fat a--” on Instagram. The singer also slammed his ex-girlfriend. “He’d rather capitalize off every vulnerable, barely famous, emotionally distraught female with a pretty FACE,” Brown wrote on one of York’s Instagram posts, according to the Shade Room.

Meanwhile, Brown’s ex-girlfriend Tran wants him to leave her alone “forever.” A photographer asked Tran Saturday if she would get back with Brown. “Nope,” Tran casually told the Hollywood Fix paparazzo before getting in the car.

Tran reportedly also advised Kendall Jenner to maintain her distance from the “Loyal” singer. Jenner and Brown sparked romance rumors after they were spotted together on several occasions.