what should I do?

alright so one of my friends has been stressing over a fight between two of her other friends… hope im not losing you yet haha. ok well basically her two friends used to be very close but they got into this huge argument and now they dont speak to eachother at all! well they keep coming to my friend for advise and thats just stressing her out. because of all this she wont even bother to talk to me anymore and it really bothers me :/ I texted her on saturday and sunday but its like shes acting so weird. I hate it and I don’t know what to do.