I'm sorry that you feel like that J-lynn. I see your doing nothing wrong. You were doing what was needed and children need discipline. My ex and his wife do not in one bit discipline my son and they don't even send him to bed. He comes back from his dad's really tired and goes to bed straight away and sleeps until I have to get him up for school. He never focuses much on the Monday after he goes there.
Also I always thought it was good for me and his dad to get on, and until he met his wife we had a great relationship and we still did family things. But then I guess she got jealous and told him not to talk to me. They live with her parents as she's an only child and god forbid she ever moves out and stands on her own to feet. Her step dad is abusive and she ended up in hospital with a broken arm. She wonders why I don't want my son to go around whilst he's in the house!
Unfortunately a court order says he has to go until he's 12. He does hate going and he's the most placid and good little boy. He's fine going to my parents, grandparents and my sister so its not that he likes to be with mummy but he seriously hates his dad's new family.
I so wish you where my ex's wife I would so love you
Just remember your doing nothing wrong and children generally like no rules and can get away with blue murder and are very resistant to change. They are either going to react positively to the news and accept you more, or they are going to hate your guts more. Chin up, they will appreciate you more as they get older and realise that you only meant what is best for them.