Yuqian Gan v. Arnoldus Mathijssen

Texas Court of Appeals, 3rd District (Austin)·Decided January 29, 2026·No. 03-24-00115-CV·Published

Opinion

TEXAS COURT OF APPEALS, THIRD DISTRICT, AT AUSTIN

NO. 03-24-00115-CV

Yuqian Gan, Appellant

v.

Arnoldus Mathijssen, Appellee

FROM THE 353RD DISTRICT COURT OF TRAVIS COUNTY NO. D-1-FM-22-002753,

THE HONORABLE CATHERINE MAUZY, JUDGE PRESIDING

MEMORANDUM OPINION

Appellant Yuqian Gan appeals the district court’s divorce decree dissolving her marriage with appellee Arnoldus Mathijssen. In two issues on appeal, Gan asserts that the district court abused its discretion in: (1) setting the amount of child support owed by Mathijssen; and (2) dividing the community estate. We will affirm the decree on the division of property but reverse and render on the amount of child support.

BACKGROUND

Gan and Mathijssen married in 2019 in the Netherlands, Mathijssen’s home country. Beginning in 2020, the couple lived together in a condo in Austin that had been purchased in 2016 for Gan by her parents. Also in 2020, Mathijssen accepted a professorship at the University of Pennsylvania and worked remotely until 2022, when he moved to Philadelphia.

Gan remained in Texas, eventually accepting a job in the Houston area as a geologist in the energy industry. During their marriage, Gan and Mathijssen had one child, “Evan,” who was born in 2021.1 In 2022, Gan filed a petition for divorce and Mathijssen filed a counterpetition for divorce, both alleging that the marriage had become insupportable. Mathijssen also claimed that Gan wasted community assets on her separate properties, specifically her condo in Austin and a house in Katy that her parents had also purchased for her. Following a preliminary hearing, the district court issued temporary orders, including that Mathijssen pay child support to Gan in the amount of $1,378.48 per month, which the parties agreed was consistent with statutory child-support guidelines. See Tex. Fam. Code § 154.121 et. seq. The parties later entered into a partial mediated settlement agreement (the Partial MSA), which addressed issues of conservatorship, possession, and access to Evan, as well as “guideline child support per the temporary orders,” and reserved the property division and other issues involving Evan for the final hearing.

In his proposed disposition of issues submitted before trial, Mathijssen asked to be awarded 50% of all community property that Gan had allegedly taken from their joint account when they separated, 50% of any rental income derived from Gan’s properties in Austin and Katy, and 50% of a 2021 Philadelphia city tax refund held in trust that he had received from living in Austin in 2021.

In Gan’s proposed disposition of issues, she asked that the court follow the Partial MSA regarding conservatorship, possession, and guideline child support. She also asked the court to order Mathijssen to pay retroactive child support and medical support, to confirm her

1 For the child’s privacy, we refer to him by an alias. See Tex. R. App. P. 9.9(a)(3).

separate properties, to reimburse the community estate funds that she claimed had been wasted by Mathijssen, and to divide the 2021 Philadelphia tax refund.

The case proceeded to a one-day bench trial, at which Mathijssen and Gan testified. Mathijssen testified that he “was very surprised when Ms. Gan first filed for divorce” and “didn’t see it coming at all.” Since then, he had been “completely overwhelmed by a complete waste of money” by Gan and “isolation of myself from family and from my son.” He believed that Gan was at fault for the divorce and blamed Gan’s mother for the disintegration of their marriage. Mathijssen recounted how Gan had “invited her mother to come live with us just after our baby was born and she didn’t tell me about this until she was already on her way . . . and initially that was awkward but then it grew worse and worse.” According to Mathijssen, Gan’s mother “demanded things in the house and practically took control of our household until the day that I got kicked out of the house myself and I had to sleep in a hotel, and I think both me and my wife were surprised by that.” Mathijssen explained that Gan’s mother, who owned the condo, had initially told both him and Gan that they were no longer welcome there, but that she had later allowed Gan to return. Mathijssen also described a disagreement that he had with Gan about Gan paying her mother a $2,000 per month salary for helping to take care of Evan.

Mathijssen recounted that when he and Gan separated, she “emptied” their joint checking account without notifying him. He explained that at the beginning of May 2022, the account had a balance of about $33,000 but that “[t]hroughout the month that balance started dropping lower and lower because [Gan] was paying off credit cards and making transfers,” “initially slowly but then it accelerated, and then on the 27th of May ’22 that account was completely empty.” Mathijssen sought reimbursement from Gan for the money that she had transferred from their checking and other joint accounts into her separate accounts

(approximately $27,588), transferred directly to her mother (approximately $8,621), and used to pay off her credit cards (approximately $16,975). Mathijssen also testified that he had transferred approximately $17,700 from their joint accounts and placed that money into a separate bank account “for safekeeping,” where it remained at the time of trial. Mathijssen did not believe that this amount should be divided equally between him and Gan because “she took more than half already, and so this is what was left that I rescued and kept apart for safekeeping, so this is, I would say, a fraction of my fair share.” Mathijssen added that he had made an effort to preserve community funds following the separation, but he did not believe that Gan had done the same. Bank statements and credit-card statements showing Gan’s spending following the separation were admitted into evidence.

Mathijssen further testified that he currently lives in Philadelphia and that once a month, he flies from Philadelphia to Katy, where Gan lives, to visit Evan, per the terms of the Partial MSA. The visits cost him approximately $1,000 every month, with airfare costing approximately $400, a rental car approximately $300, and lodging and food for the trip approximately “a few hundred dollars.” Mathijssen also recounted that he had a three-day visit scheduled with Evan during Christmas 2022, during which Gan did not allow him to see Evan for one day of the visit and for part of a second day because in her view, the weather was too cold. Gan acknowledged in her testimony that she refused to let Mathijssen see Evan during a part of Mathijssen’s Christmas 2022 visit due to cold weather.

Gan also testified that in May 2022, she moved “half of [the] money from all joint accounts” into her separate accounts. She denied that she took out any more money than that, stating that she removed “[e]xactly 50 percent.” Gan acknowledged that following the separation, she took money from the joint accounts to pay off her credit cards and to pay her

mother for helping her with Evan, although she did not know “the exact amount” of money that she took. Gan explained that a large portion of the credit card payments were for her attorney’s fees and a company trip that she took in May 2022. Gan further testified that she had received tens of thousands of dollars from her parents in September and November 2022, although she invoked her Fifth Amendment right not to testify when asked to provide details about those transfers. Gan also stated that she owned rental property in Katy and that she had a premarital agreement with Mathijssen to treat the income from that property as her separate property. However, no such agreement was admitted into evidence.

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Yuqian Gan v. Arnoldus Mathijssen, (Tex. Ct. App. 2026).

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