The 28-year-old shared a snap of a text from Chris Brown’s ex Karrueche Tran on Instagram – suggesting they’ve been messaging for quite some time.
Rob originally wrote alongside the picture: “I like when she send me pictures.” However he later deleted his caption.
Although neither Rob or Karrueche, 27, have confirmed whether or not they are more than friends, the internet has jumped to its own conclusion.
Last month Rob’s ex-girlfriend Rita Ora released her raunchy new music video for single Body On Me – featuring 26-year-old Chris.
Now some social media users are suggesting the timely Instagram post is Rob’s way of hitting back at 24-year-old Rita, following their split in 2010, and that Karrueche could be looking for revenge on Chris, after spending years involved in love triangle with Chris and Barbadian singer Rihanna.
After his split from Rita, Rob took to Twitter to blast her and claim that she’d cheated on him with multiple men.
He wrote: “When a woman cheats on you with one man I can live with that. People make mistakes, trust me. I forgiven numerous times…
“But when a woman disrespects herself by messing with more than 20 men all while being in a relationship with a Faithful man…
“I just don’t get how a woman can do that to her body. And you career hasn’t even launched yet. I don’t put up with sloppiness. LOYALTY [sic].”
Rob has since deleted the picture of Karrueche.