I don't have kids (yet) but I don't think what you told her was wrong. Taking the kids for an entire year seems little bit out of line, whatever her reason is.. My H and I always talked about that before and he was always on board with the idea of sending kids to my country for summers or for a couple of years.. but NOT when they are little, and not when they go like with one of us like escaping.
I agree with labug. Why don't you tell her your honest feelings? Also the best thing I've been doing since D dropped is to trying to see things from my H's perspective - then I started seeing things I never did before just like how you are realizing now.
Forget about what you are going through just for a second, take a long walk alone and think hard what your wife went through this marriage. And then tell her honestly how you feel.
M37 H36 M8 T12 inc 3yr L-dist 7/12:H broke down 10/12:H dad D frm W4. BD soon after 1/13:H wants to leave 2/13:H gpa passed. Feels closer but H still leaving 3/13: S begins