Sure, Justin Bieber and Selena Gomez's relationship had its ups and downs... They broke up after 2 years together (however new rumors say they are currently in NYC trying to make things work)

BUT this is one CRAZY rumor that is just now coming out!!

Reportedly, a friend of Selena’s recently spoke out about one incident back in 2011 that left Selena “devastated.”

The claim? The Biebs supposedly was hooking up with Rihanna on the side!!!

Wait… what?!

Yup! Allegedly, the friend dished that Bieber and Rihanna hit it off after flirting at an El Lay basketball game in February of 2011!

The friend stated:

“It really cut like a knife because it happened in February of 2011, when Selena and Justin had been dating for months and were falling in love. It’s caused Selena to question their entire relationship.”

The pal went on to say that Selena thought “maybe they’ve been hooking up all along.”