The recently split couple are refusing to break up peacefully, tweeting nasty messages to each other about being unfaithful.
But already they've engaged in a battle online, tweeting and instagramming some thinly-veiled digs at each other.
And now the RnB superstars seemed to suggest that there'd been some cheating going on.
Or it could be that he was unfaithful to her with some hoes.
Chris then retaliated on Twitter, saying:
"She's not mine if she's everybody else's".
Excellent use of the apostrophe there, Chris.
This isn't the first time the ex-couple have used Twitter to write cryptic messages about their relationship.
Earlier Chris had tweeted the philosophical message:
"Sometimes loving someone is too much! So loving from a distance will help everyone grow! Be blessed. Live ya life!"
Rihanna hit back with a tweet that suggested Chris had been less than faithful:
"Settling is not an option! Nothing less than 100% loyalty, honesty, and respect!! Love ain't for kidz #butimsleeptho"
"Imma do it solo. I mean, at the end of the day, shawty doing her own thang, she on the road."
Chris announced that the couple were over on an Australian radio show.
He said:
“It's always gonna be love. I'm a grown man, just gotta fast forward. I'm always gonna love that person. I cant be focused on wife-ing someone that young."
"I need to be the best Chris Brown I can be.”
It's classic break-up behaviour.
Let's look at them back before they started being mean to each-other on social networking sites:
SOURCE: Mirror