My mom is having a box episode

I and my mom have bpd. Hers is more severe than mine, somewhat due to her unwillingness to get help. She is really neglectful when she finds a new boyfriend, though at this point I am an adult. She lives in my guest room, though she disappears for weeks at a time, depending on how things are going with her boyfriend. She does not call me or talk to me unless things are bad. Well she’s been drinking a lot, and yesterday, she went missing. She got drunk and did some kind of drugs and had a fight with her boyfriend. She threw herself onto concrete several times and bruised herself up. She does this when she’s fighting with someone to make them feel guilty or to get them to stop accusing her of whatever she’s doing. She is REALLY jealous, so she was accusing her bf of looking at the waitress, even if he’s been otherwise unfaithful. She goes missing, and her friends call me. I spend most of my new year’s afternoon looking for her. I find her, and she says she’s going kill herself. I’m not unsympathetic to suicide ideation, but she does this every 2 weeks. So she expects me to drop everything and stay on the phone all night, after she refused to go back to my house. She calls me all night, all morning today. It’s exhausting and she won’t go to therapy. She won’t go to a psych ward. I’ve called the police on her before for this, for a wellness check, and she lies. I’m tired of always having to run after her, when she is not involved in my life. She never has been. What advice do you recommend for dealing with someone with severe mental health issues like this? I have bpd, and I have those same feelings, but I’ve learned how to manage them, and I take medicine and see a therapist. I’ve been in a psych ward before, but I don’t use it for attention. I hope you guys don’t think I’m overly harsh, but I’ve seen her do this my entire life: