Should I continue to go with the flow or slow his roll? Advice needed! 10 POINTS!?

So when we first met we had instant chemistry and talked about relationships and how we wanted to go about a potential one. We both agreed to get to know each other as friends first and just take things slow. (Keep in mind the friends first thing was HIS idea.) It's been a month but our relationship is far from just friends..basically since the day we've met he's insisted on asking each other relationship based questions and questions based on him and I being in a potential relationship. But when I brought up the matter of us either talking or still friends he said we were still friends. I discussed it with him explaining to him that the things he talks about and the amount of flirtation between us is not how friends act. He is very respectful and agreed to what I was saying and apologized. But we still continue to flirt. I know he likes me and clearly I like him but I'm just confused as to how he claims that he wants to take things slow but yet gives off the impression of moving just a bit faster than that. We both agreed on taking this step by step. How can I bring this to his attention without making him feel like I'm not interested or don't like him. I just don't want there to be confusion later. And I don't want to fall for something that ends up not being there later.