I'm sorry that your parents are splitting up. That really sucks. I hope that you have friends at school that you can talk about this with. One of my friend's parents split while we were in college. It is really hard. While it doesn't make it better, I'm sure that some of your parent's friends have divorced and so will be able to talk to you about what it was like for them and give you support. There were times when my parents threatened to get divorced, and I agree, the not knowing was the worst. Remember that Christmas is a long way off and things will be settled more by then. As an adult (I'm assuming that because you are in uni you are over 18-though I could be wrong because I can never keep straight the English educational system) you will be able to make a lot of decisions for yourself such as who you visit when and how long you spend with them, so even if your mother's family does not come up for Christmas, you could go and visit them. I hope that everything turns out as well as possible in this stressful situation. Keep posting here as we are here to support you.