I think the OP's wife's feeling's in the matter, are perfectly valid, and should be given as much weight as anything else. After all, at the end of the day, the little wife is who you go home to, and it's half her money.
If I found myself in the OP's position, I think this is what I would do.
I would show up ready, willing, and able, with my lawyer, to perform my part of the deal on the 30th, as per the contract I had signed. I would put the seller in the position of being the party to breach the contract. Maybe it's just a big bluff.
Assuming the sellers cannot or will not perform as per the contract, I would then think long and hard about how much it is worth to me to keep my wife happy.
If I still wanted to, and could afford to, go forward on the house, my LAWYER, repeat, LAWYER, who I retained before I even showed up for the closing, would handle the attempted renegotiation of the contract, so as to ensure that any existing legal rights I may now have, would not be waived or compromised should I wish to exercise them later on within the applicable statute of limitation(s), including how much the idiot sellers were going to kick in, if any, to cover the shortfall, and how much the idiot realtors were going to kick in, if any, to cover the shortfall, with the overall objective of making my additional expenditure to resolve this trainwreck as small as possible.
All the tough talk of litigating people into oblivion, bankruptcy, blah, blah, sounds good ( most people talk real tough until it is time to write the retainer check ) but if my objective was to buy a house for my wife, then personally, I would rather throw my money at salvaging the house than a legal proceeding that may or may not yield me a dime, and will entail even more out of pocket expense and aggravation that will drag on for years.
So, anyway, OP should do what his gut tells him to do, but whatever he does, should be done with good legal counsel, licensed to practice law in his state.
