All about me(my Wife)

i have been married to my wife for 6 years and we have two wonderful children. i have lost all love for her and i stay around for my kids sake, she belittle me, controls everything, yet she can do what ever and buy whatever. i try to not make it a competition yet she always brings it up. we are a single income family and she has the luxory of being a stay at home mom. however i cant handle it anymore and i am afraid for my kids. i work a 12 hour day and no matter what she doesnt help much when i get home with any duties with the kids. i love my kids but the nights are the hardest part baths, brushing teeth, etc, after the kids are a sleep then she leaves dishes for me to do while she sits on her butt and watches tv. i dont know what else todo and feel that marriage is over and i worry avbout my kids. how do i get to wake up and realize that i am not her puppet and bank account any more