It's pretty obvious what happened here. Having that contradiction spelled out for her short-circuited her emotionally-driven brain and caused her to disengage. That's why she suddenly doesn't care about anything: She just didn't want to talk to him anymore because he made her feel stupid and angry.
Right there he had her, and should have instantly replied so if someone walks by, and they want to rape a kill you, it’s cool because it’s what they want to do?