Hi everyone, im the caregiver of someone who has bipolar 2. she's my girlfriend, and i'm the only person in her life looking after her and helping her manage her symptoms, making sure she's going to her appointments, making sure she takes her meds, etc. she does not have any family to help, and intentionally hides her symptoms from many of her friends. she only got diagnosed this past January during a manic episode, so i'm still pretty new at helping care for her.   
ive been carefully tracking her symptoms. i have a very good idea of what her triggers are for both depression and mania, and do my best to help her avoid those things. she goes to weekly therapy and has a psych and takes her meds everyday. though, i can't control her, and im afraid that she's slipped into the worst manic episode she's ever had. im fairly sure i know what the root causes of it are and have been tracking her symptoms this time as well. we have a care plan in place for whenever she's about to slip into an episode but this time she is extremely resistant. i have called her psych secretly, who called her in that very day, and confirmed that she is in a manic episode that can be labelled as a medical emergency and has had her dosage upped. she is due back in a few days. i'm worried that i may need to look into hospitalization for her, but im very inexperienced and very unsure about this, so i was wondering what you guys think.

this all started maybe 2.5 weeks ago and has only gotten worse. at this time, she's not sleeping very much, pulling all nighters every night, not eating as much, highly irritable and aggressive towards me (at one point she was threatening to call the police or have me sent to a hospital several times a day). she is having delusions-- any attempt at acting on our care plan or trying to help her avoid a trigger is something that she perceives as harm, manipulation, and attempts to ruin her life. i am the enemy. if i try to gently negotiate with her about a bad decision she plans to make, i am the hysterical one, i am screamed at and mocked, laughed at even, and she threatens me with the police and hospital. she is only treating me this way. yes i am persistent and i know when to back down normally, but i am walking on eggshells here. she allowed me to cry for hours, multiple days in a row, with zero empathy for me. im still sore from how much i have cried because of this treatment. i know it's her bipolar, not her. 

she has broken up with me (again) and has decided that she will not only stop looking for a job, but put all her food delivery money towards a road trip. she does not want to use it on food (groceries are very low at our home), and she does not want to put it towards our very overdue bills (i was supporting us best i could on a meager salary-- every cent since December has gone towards bills and food). after kicking me out of the house (with the help of, surprise, the police!) she promptly hooked up with someone and asked someone else out. when she is manic, her entire personality shifts to be focused on sex with as many people as possible and trying to do p\*rn. nothing else matters to her. i believe she may be having some disorganized thoughts as well, and possible psychosis symptoms, as she's mentioned disassociating and seeing things a couple of times.

i would not say she is feeling suicidal or physically self-harming. she has been suicidal in the past and made threats about that too, but she does not do that while manic at all. its for this reason that im unsure if hospitalization is the right route, but her symptoms are so severe this time.. ive never seen her be so reckless and angry before. she doesn't seem very aware of the consequences of her actions and firmly believes that nothing she is doing is particularly harmful. anything that challenges what she currently thinks is "bringing her down" or a personal attack on her. she does not answer questions. either ignores them, says "ok", or just says something irrelevant such as what her plans are. she is also failing to speak to any of her friends that would insist she find help. instead she is speaking with people who only validate her choices. she seems more than okay with her utilities being turned off as long as she can go on that road trip. 

i have talked to a lot of people one on one about this, and some say i need to leave her alone and let her wreck her life because its her choice to do so, and some say that she should be sent to hospital. im not sure what to do. nobody but her psych believes me. i love her and hospitalization is last resort on her care plan. she refuses to avoid her triggers and simply engages in them even more, no matter what. she firmly believes that she only needs therapy and her medication, and does not want to do anything beyond that.

does anyone have some input on this?