Spoilers for The Legend of Zelda: Tears of the Kingdom.
There's a bit of an untold story (at least so far) if you go to Link's house in Hateno Town. Zelda has apparently moved in...and I don't think Linked moved out. The bed is bigger, there're two settings on the table, and she keeps her diary in full view. In a hidden area, she mentiones she's kept part of his old champions tunic as a hairband.
I think, for the first time in Zelda history, they're a couple. ❤