Hi @Ali585
Thanks for sharing your experience about your housemate. It sounds like you're pretty worried about her and you're wondering how to best help. It's hard to know what to say, but it's a great first step you've taken to log on here and see what others have got to suggest.
I'm wondering if anything like this has come up or your housemate before. Have you known her for a while, or is she relatively new in your world and so not sure?
It can be difficult to convince a person to step out and get help when they have no insight there is anything wrong. It can really leave people feeling incredibly powerless. People can make decisions they later regret during a manic episode, so it's difficult to sit back and watch it unfold. Though unfortunately, if she'd not necessarily at risk to herself or those around her, she's not eligable for involuntary treatment. So engaging in treatment must be self-directed and voluntary at this stage. It's important to be patient with this process, as it can take some time for people to reach out and admit they're not okay.
Easier said than done, but iIdeally you'd want to encourage her to see the local GP, who can then provide a referral to a psychologist and/or prescribe medication if desired/necessary. Continue to let her know that you're worried about her, that you care about her, and you're there for her if she'd like to talk. Keep an open door policy with her. Encourage and praise her for any self-preserving or help-seeking behaviour you notice at all (big or small). If you remain calm and approachable, she will be reminded that you are a trustworthy go-to person and she'll more likely to reach out to you or other people around her. Keeping the lines of communication open is important, as you can gather more information about her thoughts, feelings and potential decisions. It can also be helpful for her later, after she recovers and can then better reflect on her experience with greater insight.
These situations can be tricky so it's important to feel like you've got some support yourself, that you're not feeling alone in walking through this situation.
Do you have any other housemates around who you can confide in about what you've noticed? Or does she have any close friends or family come over to visit from time to time?
Take care.