Lost - A love story to make you fall in love again

Before Rohan returned to his country, he and Fai had promised to keep communicating. But in these five years what prevents her from replying to his e-mails?
Their love for each other was close to madness and the ghost of their relationship kept haunting him.
Now once again he has to visit Bangkok. Will he get to meet her there? If he does, what will his destiny foretell? Or hers?