It's simple. You like Captain. But he still can't move on from Peggy. complicated right?

To prepare for the END GAME, all the Avengers went into the time machine on different time zones to collect the stones. You, Steve, Hulk and Tony traveled back to the 1940s to collect the SPACE STONE. You and Steve entered a building where you guys might find the SPACE STONE. but...there might be the office of Peggy Carter too. But Steve was so focused on his work at hand, that he completely forgot about it. Let's see where it leads.