Man, you are dealing with a different person right now...she is not the person that you fell in love with and married. She is 'in the fog' and she can justify anything that she does right now...regardless of how wrong it is. Don't call her! Be the best father that you can be for your kids. Do not mention their mother, or anybody else to your kids. You're in a tough spot, and I know that it hurts so bad! Detatch from her...you have no control over her thoughts, feelings, or actions...so don't bother trying. You do have control over your thoughts, feelings, and actions...so exercise that control! Stay here and learn, read, and get support. Become the best man and the best father you can be. Focus on your kids and your job and yourself....NOTHING ELSE! I'm sorry. If you don't want to give up hope...then don't! But detatch.
"Always go straight forward, and if you meet the devil, cut him in two and go between the pieces." - William Sturgis, clipper ship captain, 1830's.