I have been with my boyfriend for going on 11 years and have had nothing but problems from his ex and their two children. My stepson is now 13 and my stepdaughter is 11 and they have been manipulating their grandparents, mom and dad for quite some time now. They will do things at my house to where their dad will not discipline them so I step in to somewhat discipline them and then they run home and tell their mom that I have threatened them etc. She went to court and got full legal and physical custody of the kids when my boyfriend and I first got together. Custody papers say I cannot discipline them or be alone with them at any time.... Which makes no sense because I have never done anything to harm them or their mother. It's one of those cases where the mom is jealous of the new girlfriend... Etc. Anyways, the mom has been putting it in their heads since a hound age that I am a bad person, my kids are bad etc. They act out when they are here which I think is a cry for attention from their dad. They do things wrong they don't get in trouble. But my kids do the same and he is all over them. He only gets them every other weekend from Sat till Sunday and dosent want to discipline them bc he hardly sees them. Which to me is wrong. They get by with everything because he feels guilty because he doesn't have them more... But he totally disregards my feelings about these situations... It has been a nightmare. I love his kids but there is only so much that I can take. Like his son screaming in my face to shut up.... With no discipline.... But if my child ever thought of doing this to me my bf would be all over my kid. The mom has taught them well on how to manipulate everyone around them. When they are at my house they are spoiled and can do what they want including being bullies to my children. Just like the weekend before last when my stepson talked my 11 year old son into going outside while we were all asleep and burning cardboard. I made them both go out and clean the mess up then made the stand in the corner while explaing to them what the did was wrong and they could have burned the house down. Then later that day his son was hard core picking on my daughter who is 10, she poked fun back at him then he told her that if she made fun of him again which he started it all that he was going to bash her head in. I told him no he wouldn't. Then my stepson and stepdaughterwent home and told there mom that I was threatening him. My stepson had even punched through a window and had to have stitches on his wrist doc said if he would have been any further to the one side that he could have bled to death.... But the mom and my boyfriend seems to think that their is nothing wrong with him. He told me that his Mon knows that he burns stuff and he doesn't get in trouble.I have been the only constant significant other in the kids lives. The mom has had one boyfriend after another in and out of their lives and even married this last one who is verbally abusive. What do I do?