I remember that it might have been titled Brooklyn. It had steve in it and he was gay and hid it. He was secretly in love with Bucky and never told anyone not even Bucky.He finally confessed it and wrote a book that became a movie. There was cover art and at the end Bucky came back and found out by going to a pride parade. Bucky loved steve too and was happy.
It was on AO3 and it was complete. Please help me find it again. I am horrible at tagging and saving fics i like.