In such a fanfiction, Hakoda might comfort Zuko by sharing his own experiences of loss and hardship. He could tell Zuko about how he coped when his tribe faced difficulties. For example, Hakoda might say that even in the darkest times, there is always a glimmer of hope. And that it's important to focus on the good that can come from difficult situations.
In the comics, Daredevil's marital status varies. But one notable character he marries is Elektra Natchios. However, the comic universe is complex, and there might be alternate story arcs with different spouses.
Thor's marital partner in the comics is not always consistent. Sometimes it's Jane Foster, and in other cases, it could be someone else. It really depends on the creative direction of the particular comic series.