回複：回複：You decide

You have no obligation to apply for GC for her if you finally divorced. The question is: If you want to divorce her, I don't know what to say. But it seems she wants to divorce you, don't worry, the trouble she tries to make is temporary. If your wife is really like the person you described, she will "abandon" you once she finds a richer man. Plus, when your divorce is done, she can not do any legel harm to you.