A lot would depends on the state of the mind of the victim. Obviously, the guy was definitely having a major mental health crises and his mind was highly vulnerable to suggestions from people he trusted. In this case it was his evil girlfriend. A sound minded person would tell his girlfriend off with a colorful metaphor. But a mentally ill person, would hold on as if that girlfriend held a metaphoric rope and she let go of the rope. A lot depends on how truly mentally ill was this guy at the time of his death.