Chap 1-How I met you

The rich girl Naina and the countries most famous actor,Samar fall in love. Happily leading their lives and being head over heels love with each other.But someone doesn't want them to be together. And the evil plan works well. Naina leaves Samar and goes away to Brazil. She meets Samar after 3 years of being a world famous writer and the girlfriend of a travel reporter.
Who is one playing the evil game? Will she ever get over Samar? Is she meant to suffer all long? Why is the person plotting against Naina?is her life in threat?