Man, this roommate bitch. She had some manipulative vibes from the first moment but this is just... idk what I expected. I really don't like her. She came after the MC for money, but when she found out there was none, her remaining motivation is abandonment issues? It makes me wonder if she likes her at all (didn't seem like she was all that into it during their shower fun either).
Anyhow. When's the title gonna become relevant? Surely there'll be a murder reveal soon enough
If I had to guess, the 'Kill Switch' title is likely a reference to the kill switches that a lot of bikes have installed on them, which turn off the engine and should only be used when the bike is not in motion.