Mike, I don't see anything wrong with what you did myself. Your W needs to know how this is going to be on both of you, not just you. D will make a lot of sacrifices financially on both of you.
Don't worry, I about got the same line as what your W told you about your lawyer. My lawyer fee was $7000, W told me I must have got some hard nose lawyer for that price as the one she was going to get is only $3000. Well, I have put a hold on my lawyer, I figured if she wanted to file then it was up to her, I would not make the first move.
Hang in there, this is just her way of showing her side since things are not going her way at the time. You still have a lot to look forward to in my opinion, I don't see your sitch being over.