2 weeks-unread ex-boyfriend's messages. Should I read them?

I hooked up with a guy too soon and loved him too soon. Within the same month, I started seeing his true colors. He was rude, unempathetic, a hater, a snob, extra selfish, and so much more. I decided to leave him before it was too late, so I broke up with him, and ignored him when he continued pursuing me. A few days later he sent me a message full of insults and slut-shaming, accusing me falsely of sleeping around with men. I couldn’t believe the words came from him. After seeing no response from me still, he apologized. In the process of getting me back, he insulted me again. I felt so offended that I decided to leave without a goodbye. It’s been two weeks. I’ve not opened the messages that he sent. They could be positive or negative, I don’t know. Should I open them, or delete them? I’m scared to find more insults that will affect me. Should I read the texts? Should I also contact him for closure?