Don’t worry about Chris Brown’s girlfriend model Karrueche Tran being upset about Breezy eating Rihanna’s “Birthday Cake”. Word is she knows and don’t let it bother her because they have an open relationship. Word is she never questions him about Rihanna, even when he go several days without returning a call…Hmmmmmmmm. Sources are saying Rihanna made Chris Breezy do the Birthday Cake remix to force him to prove his love to her…disrespecting his girlfriend. If you haven’t heard it yet click here….