Mariah Carey and Bryan Tanaka Break Up Over Extreme Jealousy

Mariah Carey is done with Bryan Tanaka and vice versa, and we're told it's over 2 things ... his insane jealousy and her shutting the cash register drawer on his fingers.

Our sources say Bryan had unbridled fury over Mariah's relationship with ex-hubby Nick Cannon. She's been chummy with him for sure, mostly for the benefit of their twins.