Just end it for the same reasons it ended before, anyone going back into a relationship with someone that ended for a specific reason without sorting that reason out is at least going to have it in the back of their minds that it will happen again.
Just tell her that you are sorry but you *both* made a mistake in getting back together because the major problem that existed between the two of you has not been sorted and it's simply not going to work out.
As for the self harming, if she threatens you with it then she does it simply for attention and little else, i understand why people do it as it is a huge release, never done the whole cutting thing, but in particular fits of rage i have taken it out on walls, doors and the like and it works, the pain is a release.
If you are worried get her best mates number of her phone and talk to them, do not go to her parents, as they are not always the best help ( i don't know her parents so don't know) but with some parents they are more concerned with how it will seem to reflect on them as parents rather than actually trying to help her sort whatever it is that is causing it, this is what my ex's parents did when they found out about her self harming, no attempt was made by them to sort it out they just wanted to cover it up and hide it, much the same as they did when she told them she was raped when she was 11.
If you are going to go to anyone do not go to her parents first, go to her friends.
Just tell her that you are sorry but you *both* made a mistake in getting back together because the major problem that existed between the two of you has not been sorted and it's simply not going to work out.
As for the self harming, if she threatens you with it then she does it simply for attention and little else, i understand why people do it as it is a huge release, never done the whole cutting thing, but in particular fits of rage i have taken it out on walls, doors and the like and it works, the pain is a release.
If you are worried get her best mates number of her phone and talk to them, do not go to her parents, as they are not always the best help ( i don't know her parents so don't know) but with some parents they are more concerned with how it will seem to reflect on them as parents rather than actually trying to help her sort whatever it is that is causing it, this is what my ex's parents did when they found out about her self harming, no attempt was made by them to sort it out they just wanted to cover it up and hide it, much the same as they did when she told them she was raped when she was 11.
If you are going to go to anyone do not go to her parents first, go to her friends.
