Family anxiety

So, my parents have been fighting a lot lately. When I was a kid they really only fought because they chose one kids story over the other, but now that all of us except for me are out of the house, they seem to just fight with each other. They started getting in fights over stupid things and now it’s kind of like 1/4 of their conversations are them yelling at eachother over little things and it’s like one of them asks a question and the other just freaks out. Today my dad asked my mom if she was making dinner and she told him that she had to make a cheesecake and they started fighting about that. That branched off to another fight about them always fighting. The last thing my dad said was “obviously we don’t get along anymore”. I’m just scared my parents are going to get a divorce and I don’t know what to do or who to talk to