this is all just background and context (and me ranting) so scroll down for the tldr and questions

So since the moment I woke up, I decided to videocall her and we just said goodmorning and stuff and in my still half asleep daze, I wanted to tell her about a dream I had. When I was telling her about this dream and it got off track and I was responding slowly cuz I was sleepy and just a tiny bit bothered that I couldnt go on with my story

then she got angry and annoyed at me and the following parts after that was just a chain of me asking if shes angry at me and her thinking that i sound mad and her getting annoyed about that and a whole chain reaction of that over and over

then after that we talked about a night we had and i was pretty sad about it cuz we were at a club with her friends and i barely really got to dance with her because she felt awkward dancing with me and she couldnt divide her attention between me and my friends, and that convo transitioned into another fight

and now she's having an emotional breakdown and crying because of unrelated reasons

TL;DR

ANYWAY, sorry i trailed off but how can I help her in this situation? mostly emotionally because I can't physically be beside her at the moment

also how do i withstand the stuff that gets thrown at me (im incredibly sensitive and get hurt by things she says or even her tone sometimes)

and also I say "presumably on her period" cuz exactly 8 days ago i saw her open her period tracker and it says 8 days till next menstrual cycle and so im guessing its today

i really love her and albeit although its jarring to say the least, i still wanna help her get through this and not let my OWN emotions get ahead of me