Also he asked me 2 weeks after I paid him.
What it needs to take 2 weeks after paying him? this is already sketchy. This is why others don't want to take transactions through Paypal but it is already there, like this suggestion above. The only people that can help you are the support from PayPal itself.
You may call or contact them thru
https://www.paypal.com/us/smarthelp/contact-usThere are options of calling them, emailing or chatting them.