I am looking for a historical drama I saw a few months ago. I cannot recall any of the actors so I am just throwing this out there to see if it rings any bells for anyone.
FL is betrayed by her fiancé the crown prince. FL volunteers to her Emperor father to marry the foreign prince for peace. FL leaves for marriage - FL and ML are happy in their union. But of course, idiot 2ML is in disbelief and chases after FL and tries to get her back.
This may be a repeat plot, but I think I have only seen the one.