@Czlowian she took on the poster for him, came running as soon as she heard he was alone... you can draw your own conclusions, but in my experience girls don't do that kind of stuff without some sort of 'motivation'.
Still though, it's unusual the way she presents that as a way of shutting down discussion about them flirting is pretty suspicious.
I'm really happy I'll finally get to read the end of this next year. It's been a wild ride and I'll miss it.
Also pretty sure she still likes Hamaji but the way she worded it is weird. Maybe something like The Hamaji after he got rejected by senpai or something like that.