i have been with my boyfriend for 4 years, his son was only 4 months old when we started dating. since the start his BM has been causing trouble, mostly with me. She got a boyfriend about a year ago and the bull stopped for a while he has now left her she has a 4 month old with this other man. The problems havent started back up with me but everything seems to be on my step son. She has always pushed him off on everyone else since he was little and even worse now.