Remus had been studying in a private alcove in one of the halls when he saw Sirius' message. It surprised him a little when Sirius asked him to meet him in the Room of Requirement, rather than the Common Room or just their bedroom. He was intrigued, wondering what he was up to when he left his study spot and started his journey to where the room was secretly located.
After going through the motions to bring about the door that would lead him in, Remus stepped inside and looked around. Immediately, he heard the sound of the fire burning in the distance. As he looked around, he saw the love seat and the picnic. And then he saw Sirius. He'd gone to all this trouble just for him?
In the midst of all the terror that occurred during the past month, he and Sirius had confessed their feelings for one another. Remus had been there for him the whole time, but it wasn't exactly the easiest way to start a romance with someone. "Sirius," he said, as he looked around in wonder. "Everything looks so beautiful in here."