Dedication - Copyright

She was going to marry with her love but just right before getting married(very end moment)she had no other choice and had to marry his childhood acquaintance (who just returned from abroad after 5 years)
.
.
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And this fated connection with her groom changed her life drastically and beautifully .

As she fell in love with him.....

Here he says like :
I am blessed to be yours
My hottie choco pie

But the question is why she got married with her destined chilhood acquaintance instead of the one she loves. And what did happen just right before the marriage that she has to marry him instead of the one she loves.Where did her boyfriend go? Will he ever return?