We were at a park and I was just sitting in my car while he worked out. A couple's (looked homeless & were definitely not all there) car wouldn't start so the lady was walking around with a jump cord trying to ask people. My bf came up to me & told me I should help, but I told him no because I feel uncomfortable. Tbh I would feel uncomfortable if it was anyone, just because I don't know how to jumpstart a car & my car is older so I don't want anything to happen to it. He got upset that I didn't want to help. I told him there were many other people at the park that they can ask, but he still got mad. I do help people & all, but when it comes to my car I don't feel comfortable with it. What do I do?