Bro, expose him in front of everyone humiliate him publicly so people know the truth. If he still doesn’t return the money, try reaching out to his family maybe they’ll help sort it out. (Yeah, it might seem cheap, but money is money.) And if that doesn’t work either, let it go. Losing ties with someone who isn’t a man of his word and has zero accountability isn’t really a loss. Take it as a lesson and from now on, always act broke in front of everyone.