This sounds like you're in an abusive relationship. I'm sorry to say this, but it doesn't sound like this guy loves you. He humiliates you, he disrespects you by saying you've cheated on him with everyone in town. A solid relationship is built upon trust, something he clearly does not have for you. He also puts your life in danger by driving recklessly. Don't allow him to do this anymore, it will get much much worse from here. This person needs serious help, this behavior won't just disappear on its own no matter how many times he apologizes, it's just going to be a cycle of the same abusive behavior over and over again.