Nothing was just information, and if Steve really believed that then he couldn't be trusted not to spread that information all over town. If Steve really believed that, he wouldn't insist on this secret that he was keeping of his own. Tony frowned, lips pursed with an expectant tilt of his head, crossing his arms in return for Steve to admit to his own poor logic, except Tony's pose looked more like a defensive hug with his elbows held. His own logic wasn't particularly sound. He couldn't imagine hearing it straight from Bucky was going to be the ideal way for Steve to find out the love of his life had moved on. "It's not my information," he finally insisted, and it felt like an admission, his challenging glare gone now so he could avoid Steve's eye and the sharp edge of his argument dulled to more of an apology. He would rather be saying that he trusted Steve.