My friends broke up. What am I supposed to do?

I feel bad for talking about this because it personally does not involve me, but I don’t know what else to do. I might delete this.

I’ve known my friend (A) for about 4-ish years and started hanging with his new roommates for about two years. We’ve done so many fun things together, and I’ve never had so much fun hanging out with them. I don’t have a lot of friends, and it was nice being wanted to be around, instead of vice-versa. It got to the point where they wanted me to move in with them.

However, things took a turn for the worse: My friend broke up with his partner (B) a few days ago. I don’t know all the details (and probably shouldn’t even be talking about this in the first place), but it was out of the blue, and he was pretty devastated. I don’t know much about relationships (never been in one), but I told him to calm down and take some time to process things. (B) is on vacation, and (A) is doing some rigorous work, with (B) being his moral support. They’re both great people. They were all lovey-dovey, and after two weeks of being apart, it’s a total train-wreck.

I don’t know what’s going to happen to us–and I feel like shit for wanting things to stay the way it was before. I’m mainly here to get some advice, because part of me feels that I’m going to have to pick sides. I know I don’t *have* to, but I feel that I need to prepare. I want to hang out with both of them, but it seems that it would miff off the other party if I “went behind their back” to do things.

Beforehand, I hung out with another friend’s roommate (She invited me to go dancing at the bars), and they got mad at me because they felt that I disregarded them. They wanted to study with me, but I had a long day (classes from 8 AM – 5 PM, so I told them that I was going to take a nap before getting dressed and heading there that night, and I hung out briefly at the apt. before we left. They didn’t talk to me for months, and this was during the pandemic, so it hit *HARD* because I had too many falling outs and most of my friends graduated, went back home, found jobs, or moved back to their original countries.

I don’t want a repeat of the above and end up friendless because shit hit the fan. This is basically the only friend group I have now, and I don’t want to be cut off because I say and do the wrong things. I like both of them and want to hang out with everyone, but I wonder how my actions will affect everyone as a whole. (A) is pretty down, and now I’m offering support and hanging out with him. (B) talks to me (from time to time since he’s in a different time zone), but I think he doesn’t know that I know about the breakup. I won’t talk to him about what happened, because it’s not any of my business and he’s at the beach.

What am I supposed to do at this moment? I want to be friends with everybody, but I’m afraid of making the wrong choices. These things are like games of chess to me. Any advice is appreciated. Thank you.