Respectfully, this "dynamic" would not develop unless you help create the environment for it. If it's an "all business" transaction, then it will be all business. It's like flirting, nothing happens if you don't flirt back. If you talk, open up, be vulnerable, that will invite same. If you see someone for repeats, it's hard to be 100% business, but you can still keep it light and lively without going deeper. Enjoy the attention, and don't lay it all on the other guy