sounds like you should go fly. Mostly what I think is you shouldn't lie or make untrue excuses. Trust your instincts and quit overthinking everything and making yourself crazy.

Its a second date with a great guy. He may be Mr Right but for now he is just a guy you really like, have a lot in common with and who wants to take you up up up into the sky. Trust your instincts and wait till you talk to him before you try to script the conversation.

I get all of your excitement and how much he is on your mind so do try to enjoy the experience as it happens. Think about how you feel and remember the first date but don't try to predict or orchestrate the future. Just let it unfold as it should. Don't miss a moment of it trying to figure out the next step.