Separations are difficult

So last night my husband received an article 15 for adultery. Yup, he did the one thing I never thought he would do in our marraige. Now I am left pondering if I even want to save my marriage. He told me about all of this about three weeks ago, but last night it became completely real. And I thought that I would wake up this morning and not be as upset about it as I was and yet I realize I'm probably even more upset this morning. I have no interest in my marriage anymore. Why should I stay with a person who thinks it's okay to do that, whether or not they were in Iraq? I have been to Iraq. I never did that. I have stood by my husband through 4 article 15s and each one of them is for something worse than the time before. How much more am I required to take? Just because I'm a Christian I'm supposed to sit by while my husband ruins our family and I am made to look like a fool? Why don't I deserve to be happy? And why couldn't he have told me this before I quit my teaching job and before I uprooted our children and moved down here? I feel like I have given up everything in my life for him and have done it multiple times yet he does nothing and gives up nothing.