Old member. Now long time lurker. I have a sd9 that I have a great relationship with. All of our step issues stem from how much of an idiot BM is. You guys all know the type, every boyfriend is the "one" moves herself and her 3 kids in with every new guy.
BM has 3 kids total with 3 different guys. My DH is the only involved father. She picks winners and has moved those poor kids 4 times in the last 3 years after moving them across the country to "be closer to family". We are used to it at this point and I can only assume the kids are too.