Naminé liked painting strangers walking down on the world below, swallowed by the tide of rush hour and urgent works. But a particular stranger, with blue-grey bangs shading his face, was her favorite target for the canvases that would later be surrounded by a sea of paint and interested people.
The reason for it was his odd looks, the way he'd curtly greet those he worked with. The fact that he still carried around books, when there were much more modern ways.
So, she is disappointed when Zexion ceases to be a stranger to her. But she switches to painting couples, so it's no big deal.