We are going through this now. It's heartbreaking, to us and for the kids, who have long since given into the alienation and are now convinced their dad "abandoned" them. Our problems began when, during the first three months we dated, I took their daughter to a movie while my (now) husband took their son to the park. After she got home, his ex sent him a scathing email reprimanding him for allowing us to go to the movies without her consent and their daughter stopped regular visitations. I can count on my 10 fingers how many times we've seen her in the four years we've been together. It wasn't long before things spiraled completely out of control and, eventually, their son slowed down, then stopped his visitations as well. There are a lot of other details in between, but the bottom line is we don't see the kids and the court makes sure she gets all the money that she believes is due to her, but when my husband tries to share her nasty messages, alienation tactics and lies she tells directly to the court, they won't listen.