We trusted each other with anything. She was always by my side and we had similar interests… only for her to start acting dry and distant. When I asked what was wrong, she blocked me and then on an alternate account, told me to stop talking to her (which she did first, I already stopped) and that we weren’t friends anymore. She then told me to kill myself and called me a dumb bitch. She also enjoys seeing negative and painful reactions out of me and knows I’m suicidal but told me that anyway.


LOL, no. A malignant narcissist would be keeping OP around to abuse in order to make themselves feel better. Sounds like she just told OP to get fucked and that was that. We don’t know anything else.
The typical narcissist relationship cycle goes from idealization, to devaluation, and then discard. However, often after discard there will be an effort to suck the victim back in (the “hoover”). Also, we do know more. Specifically, that she told OP to kill herself, knowing that she is suicidal, and also that she derives pleasure from OP’s negative, painful reactions. This clearly shows a lack of empathy, a key characteristic of a malignant narcissist.
I don’t know, you’re probably right, but to add more info, she acted very attached, trusted me with a lot, I was like her favorite person, and she even wanted me to move to another country to live with her only to discard me because I wasn’t useful to her anymore.