My fiance was previously married and has 3 kids with his ex. She is a monster to deal with when it comes to the children. She is always telling my fiance what a horrible father he is because things don't go her way and she's having a bad day. She is great and gets along fine with my ex when things are going her way and life is good for her, but if something happens with the kids or she's in a "mood" then all heck breaks loose on my ex. She will tell him that his kids hate coming to his house, and that he never does anything for him. All of this is untrue and we've had talkd with his kids and they love coming to his house and he is a great father to them. It all reality she is the parent that wants to be their "friend". She has no bed time for them during the school year (the kids are 6, 7, 10), they have no discipline at her house and the personal hygeine she teaches them is far from good. We are so tired of our lives constantly being in turmoil because of this woman!! What can we do to stop this???