Shikkari-san is deifinitely into Fuantei. Imagining them getting married, talking about Fuantei like her boyfriend, then clarifying that she's a woman, but not that they aren't dating, and getting embarassed (in chapter 1) when Fuantei says she's acting like her wife... not exactly the most heterosexual of behaviors.
Also, drawing her gay books. I wonder if she'll ever draw yuri (the superior genre).