Before suing Encroaching Pines, Gene had dinner with his fiance, Eurydice Espinoza. Gene told Eurydice that his accident might be the best thing that could have happened to them. His back had been killing him even before the accident, but he had been afraid to go to the hospital because he did not have the money for expensive treatments. Now, though, he could claim his back was injured in the accident and Encroaching Pines would have to pay for it. Eurydice and Gene did not want to worry about planning a wedding while Gene's trial was going on, so they decided to fast track their marriage and got married at City Hall the week before the trial began. However, shortly after the wedding, Eurydice found out Gene was having an affair with her sister, Medea. Eurydice left Gene but did not divorce him. Encroaching Pines wants to call Eurydice to the stand to testify against Gene. Still furious at Gene for his infidelity, she agrees.

What privilege, if any, can Gene invoke to prevent Eurydice from testifying?