I am engaged to a wonderful man and he has a 10 yo daughter. He and his ex-wife were dating for 5 years before they had their daughter and they finally got married when she was almost 2 and divorced when she was 3. He’s ex is the one who decided to end the marriage. He and I have been together for almost 4 years and we do not have any child together. His ex has always had a problem with me, but lately it has been getting worse since he has told her of our upcoming nuptials.