Explain why either would need it?
they'r eboth working on major albums right now. Rihanna's album did terribly for her and ne-yo's album ruined def jam's finances. rihanna had 6 or 7 singles and barely went 2 times platinum.
usually aafter artists reach a certain point they need extreme personal situations to go public in order to further their success so it could very well be a publicity stunt.
chris brown and rihanna are big but there's nothing about them personally that draws the fans to them, nobody cares about their personal story, there's no dirt in their history so this will be that think that everybody talks about that'll keep them relevant.