Strong I agree with the others - is your date in a place where DTD would be able to happen? Could you change to a more public venue so it's off the menu? If he won't agree to that, you have your answer in any case and you can swiftly cut your losses. Hope he proves you wrong though!
I do use LOL from time to time, and too many smileys - all fine in context, I think. Spent a bit of time messaging a chap who typed heehee a lot. That was quite annoying good job he disappeared then
Scrazy re managing expectations - I don't think it's always so contrived, it's quite often sub-conscious. They're maybe testing whether you're still keen, wanting you to do all the chasing because they like the ego boost, staying in control by only replying when they see fit, not when it's good manners. They're just not that available, for whatever reason - insecurity, commitment-phobic, scared of rejection, etc.