This is the usual advice given in this subreddit ( and others ) when the question of divorce, or acrimonious break-up, or cheating spouse comes up. And I think it's mostly good advice, but it's incomplete. (IMO)

I think a similar list of suggestions, with a bit more detail would serve guys better in the survival course of a divorce, or any other conflict-encumbered break-up.

Assuming "lawyer-up" is warranted due to incoming legal conflict or dispute, the first thing I suggest to guys is to

begin keeping a journal.

No long-winded entries on your dreams or aspirations, just short factual entries that should be boring and succinct.

example: Monday 5 sept, 2016 - went to work 8 am, no traffic, bought groceries on the way home. ( staple the grocery receipt to the page )

Also, never tear a page out. This journal is a point of mundane stability in a period of your life in which you are under attack from (potentially) multiple directions.

Deleting facebook : yes, but first scour and screen-shot all your ex's facebook postings going back at least 4 months prior to the break-up. Also back-up any other digital communications you have had with her.

Back all this up to removable media and store it APART from your computer. ( in case your computer is seized )

Also, besides deleting facebook, change ALL your digital passwords. ALL OF THEM. ( do you think she doesn't know your old ones?)

Hit the Gym . YES! ( but if she also attends that gym, move to a new gym - if this seems unfair, too bad, survival first, fairness later )

Finally, cut off contact with your ex for at least a year. (do this first)

Just my own slightly more detail oriented version of: "delete facebook, hit the gym, and lawyer up"

Edit: spacing