Eddie gets legitimately upset as the years and decades pass and Steve just keeps getting hotter to him.
Steve at 25 getting fitted with his first pair of glasses causes 26 year old Eddie to miss the bottom step of the stairs in their first apartment.
Steve in his early 30s whose body is starting to show evidence that his metabolism is no longer that of a 20 year old in their prime. He has a soft middle covered in hair and a slightly softer jawline. The image of Steve coming out of the shower to join him in bed makes him want to chew on his own fingers.
Steve at 40 with grey hairs showing up along his temples that unlock an affinity for the Older Man look Eddie had never given much thought before the love of his life was suddenly a DILF.
Steve in his mid 50s with full salt and pepper and wrinkles carving paths around his eyes and in the valleys of his hands. Eddie thinks Steve looks like a damn model, still with that famous Steve Harrington volume to his hair, while Eddie is starting to thin a little at his hairline. (Steve tells him every day how handsome he finds him, but Eddie doesn't think the unfairly attractive get to try and hype him up. He'll take his opinions from the brutally honest, like Erica Sinclair, thank you very much.)
Steve and Eddie getting close to their 70s, their skin is soft and fragile now. Steve has a smattering of age spots that situate themselves happily between his smatterings of moles and freckles and some of Eddie's earliest stick-and-pokes have faded away into distant memory. Eddie loves to kiss every new spot he finds on Steve even when his back protests the reach, and if he forgets which ones he's kissed already from time to time, well, he doesn't mind doing it again. Better safe than sorry.
Steve and Eddie at the end of their lives. They look so different than they did when they started their lives together, both barely over the threshold of their 20s. Some of the details they forget, but luckily they have several scrapbooks chock-full of the best moments of their best years together, so Eddie will never forget how annoyingly beautiful his husband has remained through a lifetime of love.