“I did not come here to make friends,” the reality TV star says. “I came here to cause chest pain, nausea and vomiting.” She redefines how a dating show contestant can be tasteless ― and odorless. Her name is Carbon Monoxide. “But you can call me C. Mo,” she introduces herself in a Bravo-style title card. “As in see mo’ life-threatening health problems.”She’s just one of the noxious cast members on “Hot and Toxic,” a fictional parody invented as part of a new environmental campaign against using natural gas for cooking and heating. The setup is darkly funny. An…