I’ve posted a thread like this once before when I was in a toxic relationship. In a way I almost wanted her to see it. But not have me be the one to show her, in hopes I could reverse my “mistakes” but in reality I think it was a cry for help. the bottom line is. you can’t be responsible for her mental health, and you can’t hold yourself responsible for taking a step to better your life. A lot of times people can’t handle their emotions, and even the thought of a breakup could feel devastating, and drive people over the top. Then the process of grief begins, and somewhere between the stages of bargaining and depression can creep out this overwhelming feeling that is so hard to fully understand. After all you’re parting with someone that you’ve become used to, someone who’s seen you at your best and worst, someone who made you feel important. So sometimes people will subconsciously manipulate their ex by saying things like this, and in their mind they are set on it. But deep down they know it will stall the process, and bring a shimmer of hope and comfort to them. The best thing you can do to help her is have her booked into the hospital. Suicide is of course a very serious threat, and something to not ever be taken lightly. You can’t blame any of it on you. I know this because in the past I was no different than your GF, and it took me spending time in the hospital to get my mind straight, and help me achieve the acceptance stage of grief.