This is one love triangle we definitely would never want to be a part of.

Rihanna, Chris Brown's ex -- or current girlfriend, we can barely keep up -- was spotted at Karrueche Tran's party Thursday night (Jan. 24), and it appeared to be an almost pleasant appearance! In case you've been going dizzy over these three, Tran is actually Brown's most recent ex-girlfriend.

The 'Diamonds' singer was seen exiting the club Playhouse, the same Hollywood nightclub where Tran was throwing a party to celebrate her being on the cover of 'Rolling Out' magazine.

But get this! Not only were Tran and Rihanna in the same room, but Breezy himself was there. However, the NY Daily News notes that he made sure to stay out of any kind of limelight so that Tran would be center stage for the night.

How... thoughtful.

No word on a Tran-Brown reconciliation, but he and Rihanna are expected to release another single together, their most recent, 'Nobody's Business,' appearing on the latter's latest album 'Unapologetic.'

Listen to Rihanna 'Nobody's Business' Feat. Chris Brown