A celestial Room of Requirement - that’s original. And what a beautifully written, touching story. The bits about ”time spent with Severus, time spent without” were particularly memorable.
I loved the way you described Harry’s feelings throughout and the way you showed how happy being with Severus made him, despite the impatience, bitterness and desperation he also felt because of the circumstances. Clearly, Severus was worth all the heartache for him. That the rest of his life had become so bleak was kind of sad, although I smiled at the image of Harry lecturing about his favourite war hero.