See, at least Alice is able to catch onto the fact that that kind of behaviour isn't exactly normal.

But the concept of that level of romance - obsession, really - is far beyond her. Alice can't even understand basic romance, let alone wanting someone so bad that you'd kill others who are in the way to get to them. Hence why she gives Natsuno a slightly confused look as she tries to wrap her head around this.

"She murdered your friend because she.. was jealous?" Is that what it is? Weird.