What happens when a cheerful girl and a cold guy solve the problem ?

"i look forward to the day.. day of consolidation of our love. it is the wedding day", Jieun "you always be my angel. forever..",Sehun "There is nothing that can stop me from achieving my dream to be your bride unless if something unexpected happens",Jieun "The wedding day is tomorrow..", Sehun "The last from me to you,