Oh honey, that's awful! I'm so sorry, what a horrible thing to have happen, especially right before the holidays.
I've been there. When my daughter's father left me I really thought my whole world was going to fall apart. You know how every time you think of him you just want to throw up it hurts so bad? I remember that, vividly.
Fortunately, it fades. It takes time and your angry, and devastated and beyond miserable, but it fades. You'll be fine, you're a strong woman and I'm sure the right man will see you (and how wonderful you really are) when you're ready for him. I'm sure right now that is absolutely no consollation, but it's true.
I hope you take some time to really feel this break up, work through it and get over it. You don't deserve to have someone treat you this way.
Take care of yourself and know people are thinking of you and wishing you the best.