Sat Nam,
Through a series of enlightening events, I became a single parent before my son was even born. I felt a lot of anger and regret at having been placed in this situation, and at having placed my son in this situation. I have since come to terms with my responsibility in the way the situation played out and I am much more at peace with the way things are for us. In your original post you had said you wondered if this was some karmic action against you for previous mistakes. What I have found, and what I hope will touch your situation in some way, is that everything that took place during my pregnancy and in my son’s early life is already a part of his beautiful story, and that these events help shape the person he is becoming. I believe that my son is a beautiful, powerful person meant for nothing less than greatness, and me being a strong single mother is an important part of his story. So perhaps the karma involved here is great karma for your two wonderful boys, not a punishment for the lessons you are learning. Love knows nothing but love. You are a strong, beautiful soul and your boys will reap nothing but great things from that.