Spoilt..

My daughter is a real Diva.. I think she can compete with Jennifer Lopez or even Naomi Campbell when it comes to fussiness and changing her mind. She has been over indulged by her father, my husband who absolutely dote on her.. TOO MUCH - in my opinion. She definitely has her dad wrapped around her little finger.
She will be turning 5 this July, but still wearing diapers to sleep, I've tried to train her by limiting her fluid intake after 8pm but her dad argues with me saying she needs her milk at night or she needs plenty of water.
I sit her down to train her to practise writing her A, B, Cs but if her dad is around and if she wants to do something else, she'll be clutching at her belly and complaining her tummy hurts. And her father will be all concerned.
Yesterday, I had to tease her dad because we dropped her off at the Ikea's Smaaland for kids and he was so worried over her.
She won't eat her rice or solids properly, preferring to eat all the side dishes and when I admonish her, her dad will jump to her rescue and tell me not to force her to eat in case she throws up.
Sometimes it's really very frustrating for me and annoying as well as the little miss definitely knows it and she would look at me with a smug little face.
What can I do I wonder to make her listen to me when her father's around? When he is away at work or such, she is much more manageable and easygoing, listening to what I have to say but when my dear husband is around.. I'm the villian around the house.
I'm tearing my hair out because of this.. Sigh.. Any advice anyone? Would be greatly appreciated..