Probably in the heat of the moment when you first posted, you neglected to say he asked you to remove the ad from RJ, which none of us knew he asked you to do. Plus, the way you worded it, it looked like he saw something he didn't like while going over the title and VIN, and that triggered a red flag for him and us for that matter. That's why you got the reponses you did.
You did nothing wrong and just came across a person that has caused you some grief because of their selfishness. Now that cooler heads prevail, you'll see that all the folks on this message board are here to help you and anyone else. Good luck in whatever direction you decide to take.