Who do you mean you mean the eyepatch chick? Yeah it's crazy after making a friend and lover they die so quickly. It's funny I was feeling bad for the bomb devil after she was killed after she murdered all those people and tried to kill the main guy.
Also the characters themselves are more messed up then the gore of the series.
Seems the main chick that the dude has a crush in is a demon too and seems somehow the chainsaw demon is special and maybe a gate way to hell since all demons are after him.