Affiliate Marketing Secrets

I applied for a out of state position. The contact was a independent head hunter, who scheduled my phone interview. I spoke with the employer and felt it was not a good match. She recommended another position they had open in my state. She said she would forward my resume to the HR manager who was handling this position in my state. One of their directors then called me for a phone interview, then a face-to-face. It seems to be a better fit. And looks like I might be offered the job.
Now, this independent is calling me asking me how the interview went and so on. I don’t want to be rude, but I feel he is trying to take a commission from this affiliated company who he did not set up an interview for. I have never sign an agreement with this head hunter. So I’m not sure what is my obligation to him? I’m also considered that he will try to ask for a commission from this company and might effect my compensation negotiations. What should I do?