As other people have pointed out, this story seems to have concentrated twenty pages' worth of depression into a fifth of the length. I'm not really fond of the whole- 'My best friend wants to commit suicide, and I support this decision to prove my loyalty to her' trope. I mean, it'd make sense if she was in a coma and required euthanasia, or if she had a terminal disease and didn't want to spend ages in a hospital bed slowly dying, but in this scenario, calling a suicide helpline would be a hell of a lot more sensible. Again, maybe the MC doesn't want to 'betray' her friend, or maybe they've already tried therapy and it hasn't worked, but there's too little information provided to make a judgment. This just feels like a story that you're supposed to read emotionally instead of logically, but at least for me, we didn't spend anywhere near enough time with the characters to develop a connection. Maybe someone who's been in a similar situation could get more out of this story, although in that case, I can't imagine that reading this would be very good for your state of mind.
Speaking of which, shouldn't this get a 'suicide' tag, or at least 'depressing af'? It's pretty on-the-nose with the darkness, and 'yuri' and 'drama' are nowhere near enough to prep you for it.