However, it remains to be seen if you can strengthen your bond with allies deeply enough to trigger any specific romance options. It’s one thing to be able to chat with your units, but relationships are a whole other story in Fire Emblem.

If anything, romance and marriage options may not be unlocked until you interact a lot with certain characters. You might do well to spend as much time with your favorite units as possible to see what kind of interactions and dialogue options you can find.

Source: https://www.distractify.com/p/does-fire-emblem-engage-have-romance-options