Besides the arguments and disagreements before, everyone forgot to tell a tip very important to OP.
If you're with someone that emotionally unstable (like attempting a suicide for breaking up), probably she was already showing up these signs before, way at the start of the relationship, maybe something about her parents, her friends, or her previous relationships was off. You can try some bindings, aura repulsion, other options presented to you to end the relationship, but don't forget about yourself. Ask yourself why you entered into this kind of relationship, how was it at the beginning, what made you attracted to her, what kind of person she is (do you like this kind of person?). All these questions are to make sure you don't fall for the same mistake again. I don't want to see another Zevist (are you a Zevist by the way?) ending up with a list of failed relationships, because sometimes they repeat the same mistakes.
All the members here were just trying to say is that you shouldn't breakup immediately with her, because since you said that she is suicidal, then obviously you can't take a decision too extreme (she thinks that life is all about you, neglecting herself). You have to go slow with her, make her realize that what she feels is not real love. She's behaving like a child, not accepting a no for an answer. Or, she's pretty manipulative and she knows what she is doing. It really depends on how she is, on what you know about her (friends, family, past relationships, interests). At the end, even if you try everything you can, If the bad and awful outcome happens, please don't guilt trip yourself. People should be responsible by their own decisions. You both are not siamese twins born together. Each one has a different mother and father (hopefully this isn't an incest case), different lives, different experiences, different struggles. What one solution might be for one relationship, may not work for another.
Here's some story about different situations (I'm just loving to write in this forum!):
I have an older brother (in his 50s) that repeated the mistake of having a suicidal girlfriend twice. I can remember him desperate calling up my mother in the middle of the night, because his girl was threatening to end up her life. A girl in her 40s, with a son starting to become a teenager. Her life was odd, making decisions out of nowhere, and always moving in and out with her mother from everywhere. Even my mother thinks that her son was born from interest, it looked like her mother tried to find a wealthy man for her to earn some rich child pension. She was also jealous of my brother's children (from a previous failed relationship), thinking that her son deserved better than them (that raised some red flags to him at first, thankfully).
My brother was trying to make her move to the country that he lives, many months trying to get a visa, passport. After many attempts, she said that maybe she needed to try to get the visa somewhere else. Since she always liked to post photos in Instagram (or Facebook?), my brother's friend recognized in the pictures one specific place. They found out that she traveled to other country, not the one that she told my brother.
After a while, she made an excuse that she had to stay there for a while. Time passed, and we saw that she was already engaged to someone else besides my brother. This girlfriend of his is the same that I said in another post that she was a new age witch, trying to make endless love spells to my brother. You can't imagine how much money my brother sent to that bitch. She rented the most expensive apartment at the whole town, wanted to furnish the place with everything new, while my brother's real family here was full in debt, counting pennies to buy food.
The other girlfriend he had trouble too. She was into drugs, needed psychiatric treatment too, but she wasn't the manipulative type. She threatened to end her life, but was trying to do it because she wasn't feeling well (she was switching meds, her life wasn't in the way as she intended, feeling guilt over many wrong decisions made). They got into an agreement (don't know how), and married (yes, in paper). Unlike the first case that we saw that the woman was clearly into money (only wanted to buy expensive stuff), this one preferred to be a stay at home, keeping the place tidy, and she wasn't jealous about my brother's children.
