I have been stepping for 10 years and it has never gotten easier, only harder. It has almost ended my marriage numerous times. When it comes to his ex and his daughter my husband is totally blind and weak. I have never had a good relationship with SD. BM made sure to sour her on me right from the get go. BM cheated on my husband many times in their short marriage and even told him that she wasn't sure SD was even his. She left 4 times for other men then always came back when the fun wore off (dragging infant SD and her other child with her). He always took her back!