Betrayer

I have this friend of mine whom i thought was my friend.So he had this business that he really wanted to open and he was and didn't have that enough capital to open up so he was telling me about and he needed some capital,so by that time i didn't have that capital so i reached out to my other rich friend to lend him via me inorder for him to open his business,now the business is booming and that friend keeps insisting that he need that his money back ,but when i tell him that the person whom gave me money needed his money back he is not taking him seriously,now its been a month and he keeps telling me lies and not even making any effort to pay ,what your suggestion?