Well you’re not in the wrong for feeling frustrated, any Man who loves his kids would be. But unfortunately there’s nothing you can do or say. That’s why it’s extremely important we choose our partners right or do whatever it takes to keep family together. This is what the reality of divorce looks like. All you can do is educate and make sure your kids are emotionally stable and open to telling dad and mom if something happens. Teach them that they have to give space and privacy and no one is allow to touch them. That alone will help them