I think (but I may be misremembering) that Sonny makes a comment near the beginning of PQ2 that he went back to blond because Marie liked it. He also makes a comment about how she made him trade in his Corvette for a more practical hatchback. I think these two things are said at around the same time.
> to my knowledge people don’t usually dye their eyebrows along with hair, especially when going from dark to blonde.
I do. (Really!)