@emMeBi86 Could also be that she was just hiding it and it wasn't a coincidence that she met her at the convention. The Flower Show thing was maybe just made up to not admit why she was actually there, since apparently it wasn't even the correct day for that as Shimizu pointed out.
What TV Tropes calls "Ships that pass in the night" (Shimizu gushing over and shipping two characters whom barely interact) is a bit of a dodgy phenomenon but that's probably an uncommon opinion.
everything shimizu says is scarily accurate for me and I feel attacked I’m guessing maekawa is another doujin artist or fan girl that was there for the con and happened to see her coworker there (or actually went there to meet her favorite doujin artist, realized it was her coworker, and was too chicken to admit it?)