The frown on Larkin's face could grow into a scowl the more Artie spoke earlier. His supposedly easy-going wife was starting to deviate from her first image. However, he had known her for quite a month already. It was easy to know that Artie needed something from this trip, and it was just a good opportunity for her to get it. Even if he had no idea about the goals of this wife of his, he noticed quite a pattern.
The more he let her run free, the stronger she became.
Not to mention that she had already told him that she was being rewarded for her actions. He had a feeling that this three-for-one trip she wanted was connected to those things she would be rewarded for. Larkin didn't know much about angels, but just watching Artie go from a small angel to someone stronger than him in a few days compared to her three weeks of dormancy… gave him an inkling of where her powers came from.
