Tell me what I did wrong?

I am Diana and I am 28 years old. I was born in Cagayan de Oro City. I have 2 kids a boy and a girl. My life is full of trials and obstacles, but despite of that I am still standing and no matter what happen only GOD is my strength. When I am deeply hurt I do not know what to do.
But since I have kids I never give up because they are my inspiration and they are my life. When I was a teenager I remember I promise to myself that I do not want to have a broken family. I want to have a happy life. When I get pregnant, I decided to stay with the father of my kids, because I do not want that my kids to experience and feel the life when I was a child. But since I have respect to my mom who is the one who support my financial expenses and she also provide the needs of my kids. I was still young and only high school graduate. I promise to myself I will finish my college degree and to continue the relationship we had with my live-in partner. I am not really close to my mom. I was raised by my grandmother and aunts. They were my guardian in Cagayan de Oro. Life is not fair. I am not blaming anyone of what happen to my life. I want to continue the life that I choose because I know I can surpass all of this trials and obstacles. I just found that the father of my kids is having an affair with his dear cousin.  I was shock I never taught that he can do that to me. I trust him with all my heart and soul. But what happen all my hard works and effort is useless. But I guess GOD has more plans for me because he will not give this trials if I can not handle this. So tired but happy for what happen. I am linking this entry to Blog Photo Challenge.