Maybe he is just not ready...
For my boys I introduced the potty minimally and followed their signs, one was potty trained @ 22mos, then regressed with a new baby, but JC self initiated potty training @26 mos. He was quite *stubborn* acting before about even sitting on it, I said here is a potty do you want to sit on it and he would absolutely refuse, I was in the process of moving so did not want to *try* yet and one night before bed he jsut said I have to pee in the potty and he has been going since..
But... What I did for both of them (once we got settled back in our home was basically no bottoms, 2 days at home, so that he understands and feels every single time you pee you go to the potty. Then I had to spend sometime working with underwear -- or cloth training pants. For me pull ups are a good introduction to *pulling up and down* and that is it otherwise it is just like a diaper and gives them that sense. So I would suggest perhaps chill out for a bit and still have the potty around and talk a little like *look mommy is going to the potty because I have to pee*. Then when you both are ready I would throw out the diapers and pullups and go at it full force.
Hope that helps.