However, the close relationship between the two was severely tested in 1534, as they prepared for war against Hanthawaddy. Ye Htut had become romantically involved with Thakin Gyi, the king's younger half-sister, and the affair was discovered around April 1534. The commoner's affair with the king's sister under Burmese law constituted an act of treason. Ye Htut spurned suggestions of mutiny and submitted to arrest. Tabinshwehti deliberated at length with his ministers, and finally came to the conclusion that Ye Htut should be given his sister in marriage, and a princely title of Kyawhtin Nawrahta. With this decision, Tabinshwehti won the loyalty of his brother-in-law "without parallel in Burmese history".