I'm not saying you should initiate a divorce filing. But if she's going to file for separation I would suggest to her that she file for divorce instead, unless it financially benefits YOU to just be separated. (Health insurance would be the most common reason this might be helpful).
I suggest this because planning a separation for two years is just a form of cake-eating - keeping you waiting in the background while she goes out and has her adventures. I think she's actually MORE likely to come back if she has to face the reality of divorce and all that would mean.
Again, though, get financial advice as to which would be better for YOU. I've just seen many women (and some men) here financially destroyed by waiting too long and hoping their spouse would come back, while the spouse decimates their finances.
