Found my daughters ad online

I been married for over 30 years now and by this time both my wife and I are bored of each other. We barely have sex anymore so from past few years I been using online sites to meet escorts. Few days ago, as I was searching for a girl I saw a pic o my daughter. I was in shock and denied to believe it was her. I clicked on the add and scrolled down to see more pics to confirm and they all were her pics. I still couldn’t believe it and assumed someone made a fake profile of her. To confirm I decided to call. I called few times and she didn’t answer and I felt relieved. After that day I get a call back from that number so I picked it. And it was her voice. And I knew it’s her. My voice was trembling but I kept my character and played along with it. She was so confident in everything like she’s been doing this for a while. Gave me all the details and talked like a whore who’s convincing you to come right now. I asked where we will meet and she told me she has an apartment. And apparently told me she has other friends if I’m interested. Assuming her and her friends rented an apartment where they selling themselves without anyone knowing and it’s a 5 min walk from our house.
My wife and I make enough where we have her everything she ever wanted and are even paying all her bills and college tuitions. I don’t know what should I do.