Split 3 months ago ex has already moved in with the younger model yes he wants to stay in contact with the kids and has them on 2 evenings a week and alternate weekends for which I know I should be grateful BUT the new girl is always there mostly because they live together but he never has an alone day with the kids ... now he wants her to come to a school play I have said no so they bypass me and ask my ds age 10He bless him said no he would rather she didn't come but do I have any rights for her not to be involved in their lives ? I feel like I have no rights at all and have to agree as there is no question of abuse or bad behaviour but I don't want the emotional effect on my kids to grow and grow they have had no time to get used to us splitting let alone this new woman advise please ?