When two adults opt to parent their mutual children from different households, communication issues are bound to arise at one point or another. Whether you generally get along with your co-parent or you frankly cannot stand your co-parent, chances are good that you and your former partner argue either occasionally or frequently.
Probably not. According to Facebook's website, it states that Federal law prohibits Facebook from disclosing user content (such as messages, timeline posts, photos, etc.) in response to a civil subpoena. Facebook cites the Stored Communications Act, 18 U.S.C. § 2701 et seq., as legal authority that prohibits Facebook from disclosing the contents of an account to any non-governmental entity, which includes your spouse or spouse's attorney, pursuant to a subpoena or court order. Please keep in mind that different laws apply if the subpoena is related to a criminal matter.
The issue of gay marriage has been in the news a lot lately. As a growing number states wrestle with legalizing same-sex marriage, court rulings in more conservative states are striking down gay-marriage bans as unconstitutional. Here in California, the legal status of gay marriage seems mostly settled following a ruling by the U.S. Supreme Court last summer.