The flutter that Castiel felt, it was minute and not overwhelming, but it reminded him he still had yet to work out all the details of what he felt for Meg. What each thing meant and how to categorize them. Being new to human emotions, it was difficult to try and understand what this or that meant, but he knew he felt enough at ease with her (because she often made him nervous, not knowing how to react to her or certain situations) that it could be figured out over the course of time. And that the things he felt were good things. Things that made him want to be around her more and vice versa. But not to the point where their space was encroached upon. He might not be the greatest at personal space in a literal sense, but he understood needing time away from others.
"I, um..." he cleared his throat, feeling that nervousness he occasionally felt with her. "I suppose... yes." He wasn't sure how to explain this, if it was really a date. "It seems that I was going in the direction of your home, as I made my way through town. And observing town, with company, it would be pleasant." He didn't get flustered too often, at least not when it came to things of import, but Meg had a way of turning him all around and make his words get jumbled together. He wasn't even aware of if this sounded bad or not.