I do not know both of you personally, so cannot really comment if "got use or not"..
Go to "Fei Yue" family counselling, i think not too expenseive.
I feel, should at least give it a try first. If she does not want to do the counselling, then so be it. At least you have tried.
I feel if it is not because of affairs on either party side, or not because of spousal abuse (physically), it still may be can be salvaged.
Who knows after you voiced out that you think the marriage is on the rocks and you are thinking of calling it quits, she will "wake up" and try to adjust her behaviour.
Anyway, i feel if you still got feelings for her, worth a try. But if every day, face her is like a mental torture, then that is another story..