This is the perfect conclusion for what is arguably the best arc in the whole series. From chapter 56 to chapter 71, it's been a rollercoaster. And now, she's back as the official consort!
(Personally, I like that the series lampshaded that she's back as a consort, not as the queen; while everyone is aware that the king has finally decided, the fact is she's still a lowly consort of dubious origins and becoming a queen requires more)