Good, don't say what you'd like to say. Also, she made all the financial decisions? She made a lot of the social ones too it seems- this trip, kickboxing etc. If so, I disagree w huddy maybe. Perhaps you need to assert more here. Only you know the true sitch though
Is this the case? Did your W make most of the decisions? Reason I'm asking is that this is what my M was like. My Ex liked to be in control of these things and for most of the M it worked fine and I was happy for her to do this. She was very good at it but now I realise how controlling she was. It seeped into every part of my existence and guess what? Yes, she threw all of that in my face at BD. So I agree with OhGreat here in as much as you should assert yourself if you think it's the wrong decision to send your S on that trip.
Also, money. Yea, I used to worry about that all the time. Funny that Huddy and I were discussing our early threads last night and how we never visit them any more. I do remember posts of mine similar to yours but now I've came to realise it's only money. Start working on YOUR budget and not the affect this will have on the family budget. You may be surprised by what you can achieve.
Good luck mate.
Me:43 Her:42 M:14 S:9 EA started 2014/03 (or there abouts) PA started 2014/05/30 BD:2014/11/05 I left 2015/10/01 I returned 2015/05/02 She left 2015/06/10 OM still on the go.