So sorry about your family upheaval. I can see why you must be in pain and so angry you don't want to talk to your mum. Don't do anything rash, just give yourself time. It is important to eventually let your mum tell you whatever she thinks you need to know about the situation, and to get your dad's side too. Of course, this is not about you, it's not your fault, nothing you could have done would stop it. Also remember that it wouldn't be fair to ask your parents to stay together "for the sake of the children" if they are truly unhappy together. But you have a right to be miserable too. I hope your parents both can put aside their own anger and pain long enough to be there for you.
The earlier poster is correct, this is more of a Body and Soul category question. I suggest you re-post there. You might mention your age as well, it helps people figure out what kind of advice to give. Body and Soul readers are a supportive group and will continue to converse with you as you report what's going on in your life.
Hang in there, dear! You'll find your feet again!