I'm looking for something serious
You did a very good job of keeping the conversation playful while steering it towards subjects you wanted to cover.
I also liked how you didn't outright reject his offer to get drinks. At a glance, his offer comes off abrupt and possibly showing a lack of interest. However, his prior messages show a level of honesty and awareness that's intriguing.
In the end, you made the right move of not discounting him completely, but also not jumping to meet him.