The Court may proceed with only one party there - the court may proceed via a "default", if the Court decides that the other party was provided with sufficient notice and did not show up. Likely, the Court will continue the hearing/trial, in order to try to make the other party show up at a later continued hearing. However, the Court does have the option to proceed without one of the parties. If you are just requesting that the current orders stay in effect and are made the "permanent" orders of the Court for Judgment, and all of the other issues are already decided, then the Court may be more likely to go through with the hearing/trial without one of the parties present. The Court may likely ask the attending party to prepare a Judgment. This is something an attorney can help you prepare - or check with your local Court's self-help center.
You would probably obtain a default judgment and her side of the case would not be heard by the court. Ask your attorney about getting a default judgment.
This response is intended to be a general statement of law that should not be relied upon as legal advice and does not create an attorney/client relationship.
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