Fuck, I'm reminded of Akira Kogami from Lucky Channel which is one of my favorite characters from her hilarious split persona.
'Wish we'd see this get adapted into a romance manga ... I'm very 'curious to see why she acts fake and see her true personality and character. There aren't a lot of characters like these even though they're hilarious and could potentially be very complex.
It'd be cool to see a story where a fake persona is slowly developed into truly being herself and possibly stopping herself on being fake.