The Lion's Secret (2021) (forum won't let me link it)
It has too much action if you like romance and too much romance if you prefer action (I mean it's a bit unbalanced) but it has the theme "married before love" and it has a happy ending.
Overall it has a smart enough plot, but only for the 5-6 main characters. I wouldn't give it five stars, but it was amusing enough and the actors don't look like school kids.
Also, The Sword and the Brocade (costume)
I liked it, because their relationship was just a part of the bigger image. They weren't exactly enemies, but their marriage was not their choice.