I was 14 when i had my first pap. No one has ever said anything about me sleeping around, honestly, I don't think anyone has asked me how many partners I've had

Not that it is any of their business. (my RE paperwork does ask me how many partners I've had in the past 2 years, but that is unrelated)
The closest thing like that to happen to me was when I was 17. I had a lapse in insurance. I called to cancel my appointment for birth control because I couldn't afford it. My actual doctor called me back to confirm that I wasn't going to be receiving any birth control. I told him I could afford it the following month and I would see him then. THEN he asked if I was in a serious relationship. I told him that I was, but that we weren't sleeping together. Then he was fine. I'm pretty sure he was thinking about giving it to me for free until I could afford it.
But, your doctor crossed the line. What you need to do is call the insurance company and file a complaint. Then you need to get online and find as many government agencies as possible that you can file a complaint as well.
What happens if he says this to some 15 year old sexually active girl and she feels so ashamed/embarrassed in the future that she lies to her doctors? That could have serious consequences, he needs to be aware of that.