the thing is, stucky is this complex heartfelt story that spans into the literal next century of a bond between two souls that runs so deep in which bucky truly sees steve for who he is pre-serum and steve still believes in bucky even after over half of a century of him being brainwashed into the winter soldier, and through the decades of torture and reset bucky still recognizes steve and saves him with the inner strength born out of love, where tragedy and hope find middle ground because despite the time, the trauma, and loss, because these two truly are with each other til the end of the line
and then sambucky has this snarky, rather childish dynamic with the underlying sincerity of care and respect in which sam treats bucky for the man he is in the present and actually gains his trust over hard stares and ridiculous banter and it shows in moments such as their hug when bucky actually closes his eyes and the trust he has in sam is evident and where sam didn't know bucky pre-winter soldier so he has no expectations for who bucky should be or how he's changed since the 1940s and gives bucky advice on how to find closure on his past and they roll around and have staring contests and oh yeah bucky literally tells sam "i love you"