No one got any privacy at Hogwarts, that was just a fact they all had to live with. If the portraits hadn't spotted you, the ghosts had, and so there was no way to hide, even if Adam's room wouldn't have probably been first on Gabe's search list anyway. It wasn't long after Gabe had started his search that he was knocking on the door, his lynx crouched at his feet and pawing at the frame. "Yo," he called through the wood. "Lazzara, you in?"
Well, he knew the answer, but it was polite or something, right?