Sorry for the long time... Thanks for all the answers.
After all the breaking up and comebacks, last week, when I broke up with her, she told me goodbye, but several minutes after asked to comeback. When I came back to her, I've notices something strange in her look, she told me to be with her for several hours and then go. When she was about to fainting, I've seen the empty pills boxes, when I've asked her what is this, she told me just to be here with her and it is nothing... I've called to 911 immediately and tool her to the hospital together with her parents - she tried to kill herself, and tool a LOT of pills... I've told to her parents that we are no longer together, and they told me OK, and took responsibility of her.
She called me the day after, and told me that it is not about me, it is about her hard period because of flashbacks and other things that are in her life... She asked me not to leave her, told me that we will work about together, and she is seeking for professional help (together with her parents), she decided to go back to doctors.
She is convincing me that to break up is a wrong way, that we need to work about all the thing together, she is ready to do it. When I've told her that the relationship comes to an end, not because of her problems, just because it happened, she is against it, and asking me not to leave her now, to give her time, to start again and work about all the things together, that she needs me, and she wants only to marry me... She told me that it will work, and we can do it.
I'm trying to convince her to continue her life without me, but she is against it... She telling me clever and true things that we should start to work and solve the problems together, and seek together for professional help.
From my side, I've ended this relationship, I told her that I cannot promise her anything and we cannot be together, and she should take care of herself first. However, of course I miss her, and she knows it, and offers me all the time that she will come to me and everything will be OK.
I told her that we did a lot of things, and I cannot try anymore, not after all the things that happened. But she continues to fight for me and for the love...
I'm stuck, don't know what to do...?