So I've with this person for a few months now, and I've tried to always be supportive and be there for her whenever possible and stuff like that. However, recently she's been getting a lot of those "mood swings" where she just disappears and doesn't talk to me for hours. Usually it lasted for like 8 hours or so but it's been happening for full days recently.    


I've got some advice from this sub about using an "emoji system" which would just help in communication and make me less worried when she disappears. However, it only worked for a few weeks then she just stopped using them and whenever I try to remind her, she still doesn't use them and refuses to talk about the mood swings or just says it's "normal" and I'm not supposed to do anything.  


My issue is, I have no idea what she's going through during that time, and she absolutely rejects talking to me when that happens to her for some reason, although I always try to text and be there if she wants to talk, but her coping method is just isolating and pushing me away. So it would sort of help to just figure out what she's going through and how else can I "be there for her"  


So, I've come to sub once again to seek advice on what am I supposed to do or what can I do exactly to help her out, and if anyone can give perspective on what those mood swings are like. She always tries to tell me that "I don't have to actively do something to help and I already do" but that just doesn't really sit well with me. Cause the fact that she just disappears for a whole day just makes me really worried and the fact that I'm just expected to stand by and wait for her mood swings to pass just makes me feel infuriated with myself.