My ex lied about a car accident dream—could he be a sociopath?

We was suppose to go on a date... he said that he had to cancel because he had a terrible dream of me. He seen me in a car accident and hit by a truck. He said it scared him and he didn't want to drive, So he canceled the plans. Weeks later he admitted that he made the whole dream up. I was pissed and I stopped talking to him. Than weeks later I found out his nephew got into a car accident and died. I feel really bad... Should I reach out? But Do sociopath lied about something so huge?

My ex lied about a car accident dream—could he be a sociopath?
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