id actually be quite proud of yourselfs, ok mistakes have been made, maybe even the entire problem could be described as a mistake, but your dealing with it as best you can.
your payin what you have to, yes your complaining understandbly but your child is getting looked after with that money, even if your hate-EX is wasting most on it on herself, that can actually provide a better atmosphere for the child.
if your ex, was raging that she couldnt afford the child then she probably treat it worse or if she couldnt afford clothes holidays she maybe get pissed off with the baby or blame him/her/you. women are moody vindictive creatures. they work the opposite way to men, a woman can happily be dependant on your money and the tax payers money and think somehow they deserve it cause of the baby, a man has to be able to provide for himself, a fella couldnt let himself do what they do!
either way, we can all see that you guys are being screwed unfairly but your doing the right thing stayin with the system and indirectly protecting your son or daughter.
Phil