I am dating a guy. We recently went out of the country together. When we were away, he let one of his guy friends (whom I have never met) drive my car, and he lied to me about it. I found out because I found a receipt in the car, and when I asked him about it, he lied initially. I asked him again, and he came clean. I was annoyed, but tried not to get too upset about it. I have a tendency to overreact. He didn’t understand my being upset. Was I wrong for being annoyed by this?