The South sent delegations to Washington D.C. and offered to pay for the federal properties and enter into a peace treaty with the United States.(surprised that wasn't deleted out by the fascist/federalists) Lincoln rejected any negotiations with Confederate agents on the grounds that the Confederacy was not a legitimate government, and that making any treaty with it would be tantamount to recognition of it as a sovereign government. However, Secretary of State William Seward engaged in unauthorized and indirect negotiations that failed.[6
After the fact. The South walked out first, repudiated responsibility for their share of the debt first, stole every piece of federal property they could get their hands on first, and then you would have us believe they would be willing to pay for it?
You seem to like odd analogies, let's try this one on for size. Give me your house. Turn title to it over to me free and clear and vacate the property. Once you do that I'll pay you for it. I'll give you fair value, I promise.
Deal?