My friends are arguing - and I have no idea what to do. I'm in the middle!

The best thing to do is to try not to take sides, two of my best friends hate each other and so I constantly have one complaining about the other, but I try not to take sides. Of course you don't want to lose either of them so don't completely back out of the situation, try to comfort them and listen to both of them, nod and don't say very much in the ways of side taking or try to come up with a sentence that might calm them down, the best thing you can do is be supportive of both of them, because them arguing is going to upset them and so they both need you to b there for them. Hope that helped!