For all those who hated Linden, it was hinted (someone said so though) that even in the past he loved Elise its just that to become someone perfect enough to rule a great country he/she must put all his/her feelings aside, don't ya agree? Also, Elise realized that it was her fault before that's why she was executed.
I also feel bad for Mil, after all he loved Elise both in the past and the current, hopeless romantic that is. This manhwa's future is still unclear tho :<