She needs to go in-patient from the sound of it.
She needs a therapist and to be out on SSRI’s. You are not a professional so don’t try to play therapist.
She will bring you down if you do not hold frame.
Here’s the book I recommend.
There’s a lot of spells to heal someone and I’m pretty sure to find a healer. There’s also a ritual to bring peace to a home. You can use that on your household or hers.
She is clinically depressed and has suicidal ideation… If she loves you and she’s telling you she wants to die every other day this means she needs professional help. If you love her you should call the ambulance on her, it’d be better to call them when she threatens to kill herself or “jokes” or “complains” and says she wants to die. Than having to call the ambulance when you find her in the middle of an attempt. Buy the book and do the magick but try to get her a therapist or if you want go to couples therapy and tell them about her.
Depressed people especially those on the brink of suicide can be toxic whether they realize it or not, make sure you stay on the gym and eat well. Avoid processed foods and added sugars, so basically all junk food, candy, and sodas.
If she sees you treating yourself like shit it’s only gonna make her feel worse.
Obviously don’t do drugs together.
If you guys are already co-dependant try to watch a meaningful movie especially one about suicide or mental health.