So, the fic was written from a third face. It is nowadays. A guy (may be Bucky's grandson), is telling a story about his parents at first, his problems, and all this ends up him hanging with his grandmother, who tells him all about her childhood or her own big family where her father in the early 30s, as far as I remember, after learning that her little brother was in love with Steve, made him out of the house and his family because their father was such a big dick. After returning of the cap back home in '00, she asks him (a grandson) to bring her to Steve for asking him to forgive them for that or some kind. And the grandson agrees. And there was a couple of their other relatives may be too, who also took this road trip with them and there was a happy reunion at the end of the story because by the time Steve found Bucky, they were together in their own house and all that young again.
I will be grateful for any help :))