My husband and his new woman are turning my children against me.

We lived with him for 5 years, after which we decided to get married. In marriage, we have 2 beautiful daughters. We were so happy! Of course, then I could not even imagine that in 6 years my husband would decide to and leave me and my daughters. Moreover, he already has another woman, to whom he takes his daughters at the weekend. Together with her, he turns them against me. They really don't really want to come back to my house and say they are better off with "another mom." It hurts and dislikes me so much to realize this. He seems to continue to mock me.