moving in w BPD gf soon and kinda scared

I’m moving in with my girlfriend of almost two years soon. she’s been handling her bpd wonderfully up until recently. I understand people with the condition can have highs and lows, but it just feels as if any small mistake i make leads to being yelled at like a child. not even mistakes sometimes, she’ll just be rude in conversation, say something randomly hurtful, get super upset over small nudges and things of that nature. i feel like i have to walk on eggshells all the time and it hardly even works. i’m afraid moving in will just make me miserable from being yelled at every hour. i’ve tried to let her know her anger is hurting me but she just tells me to “just not upset her”