Marvel wasn't kidding when they've planned until 2028.
Natasha and Steve's strained sexual tension.
In the fan community, there is a phenomenon called 'shipping' which is when you wish for two characters to become an item, sometimes giving the couple a cute nickname, in this case the Cold War. Whether or not the coupling seems possible is beside the point. However, should a fandom 'ship' turn into a reality, it becomes 'canon.' For those shipping Cap and Widow, Winter Soldier does a solid job of setting up their on again/off again relationship. They might not live happily ever after but there's still hope their son James Rogers will exist in the Marvel universe. LET ME HAVE THIS HOPE. GIVE ME THEIR ANGSTY BITTERSWEET LOVE STORY.