US Weekly reports that Chris Brown was with Karrueche Valentines night for a Topshop launch party:

Looks like Chris Brown’s bizarre love triangle may still be in full effect in 2013. Onlookers (and fans) were confused when Brown was given the very cold shoulder by on-again love Rihanna at Hollywood club Playhouse past midnight on Friday (Feb. 15). But Rihanna’s ire could be explained by Brown’s apparent party companion the evening before: Karrueche Tran.

Making a surprise appearance at the Topshop/Topman launch party at Cecconi’s in West Hollywood on Wednesday, Brown was among many A-listers:  Kim Kardashian and Kanye West, Kate Bosworth, Kris Jenner, Emma Roberts, and Kelly Osbourne, plus Jennifer Lopez and beau Casper Smart. But according to one source, Brown’s date for the night was model Tran, 24. Brown and Tran split in October 2012 after a rollercoaster, yearlong relationship, which was marred by Brown’s secret trysts and growing closeness to ex Rihanna.

However, Rihanna did post a bunch of roses from someone on IG and she was seen in London with Chris Brown;s jacket (below):