Seperation from my partner

Hey!
to sum this up (for everyone who doesn’t want to read all that) i need help/tips on how to manage separation anxiety.

For context:
i’ve been with my partner for almost a year now and because we both didn’t work or go to school we could spend a lot of time together. i basically live with them at the moment because i’m kinda homeless. but they live in an assisted living and their social worker is there from time to time. the social worker must not know about me sleeping there or my partner will get in trouble and i don’t have anything to sleep at. that’s why i live at my moms a few days a week but it’s really hard living there for me. but i have to. and there’s the problem: i can’t stand being away from my partner.
i try to distract myself but it doesn’t always work. my partner and me also fight a lot when i’m not with them because we both interpret things wrong in a conversation (they have bpd aswell) and that causes a lot of trouble. they will also move away to start working next month and i’m really scared of this because of my attachment to them. i‘m trying to find an assisted living in the area that they’ll work at but at the moment i can’t find anything. Does anyone have any advice on how to deal with this?

have a nice day!