Mama, she’s in love with a criminal. Britney Spears can’t stay away from her felon boyfriend. The pop princess was seen smiling and riding shotgun in her $220k Mercedes-Benz SL65 AMG with Paul Soliz Jr. behind the wheel just days after the pair got into a heated altercation at Chateau Marmont, with police and paramedics showing up at the scene, RadarOnline.com has learned. Spears’ mental health and Soliz’s criminal past have been highlighted following the incident last week but that didn’t stop the Oops!… I Did It Again singer, 42, from reuniting with her man over the weekend. In photos obta…