Diddy & Cassie have called it quits following a bad argument that ended with police rushing to her home –
They got into a heated argument in a car Wednesday afternoon after Cassie told Diddy she wanted to break up –
Diddy got pissed off and suspicious enough to grab her phone and start scrolling through –
Diddy jumped out of the car in Bev Hills — phone in hand — and she took off with the driver.
Source TMZ