You're especially skilled at seeing the subtext of what people are really saying right now, which will help you sense when the tension is running high between two people: and that's your cue to get the heck out of there! Step away and be by yourself. The last thing you need to be is a bit player in someone else's major drama. So give these people their space to handle their messy issue on their own. You didn't create it, so you shouldn't have to help tidy it up.