Is this person really your friend? If I "provided opportunity" for a friend I would never ask for a commission from his earnings. Actually, I did exactly that

Is this person really your friend? If I "provided opportunity" for a friend I would never ask for a commission from his earnings. Actually, I did exactly that twice last month because I want my friends to have work and I trust their work. Even if I did ask for a commission, I'd arrange it so he'd pay me only a percentage of what he made the first month or a single fixed fee. What your friend is doing sounds a lot like pimping. If you've been friends since childhood something like that should not be enough to end your friendship. Of course I'm making many assumptions here, but that sounds abusive. You are afraid you will lose your friend if you ask to receive full payment for a work you put on on your own, with zero input form him. You are doing the work and you should be receiving the money. Even if you two have an arrangement of you paying a fee for the leads he generates to you, his cut should be much, much smaller.