Hopefully you have a new attorney. If your ex continues to disregard court orders, she could be found in indirect civil contempt of court. That would result in her having to pay your attorney's fees. She also could go to jail if she does not comply with the judges orders. Your attorney will know how to handle this matter.
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It took 8 years to make this mess. It only heated up because she got fired up about the school cost issue. Another few weeks won't make any difference. Sounds like your lawyer has exactly what needs to be done in hand.
Must admit, I am a little confused why anybody has to petition any court for you to pay a reasonable share of your own child's college expenses. Wasn't she sending you copies of the bills? As you are now seeing, court time isn't cheap.
I can see why the judge might not think the house was a big deal, if that was not the issue before the court. It sounds like you brought it up during a hearing on college costs, when no motion on the house had been noticed in front of the court.
If your wife does not obey a court order, you need to file a petition for rule to show cause, on why she should not be held in contempt of court. This will specifically put the issue in front of the court. If the court finds her in contempt she could be ordered to pay your costs of the petition or even receive jail time.