there is nothing you can do to stop her from filing.
there MAY be things you could do, to make your wife not wish to finalize the divorce when the time comes.
How about you post about why your wife separated, and why she is filing for divorce?
And do you know who the Other Man is, and why your wife is interested in him? Because, almost every single man on here whose wife has moved out, has "someone" that she is interested in.
PS: also, how old are each of you, and how long have you been married?
My current status: june 2006. Wife ran out and filed D. Finalized Jan 11, 2010, after 12.5 years M. 3 wonderful sons caught in the middle
