Build a movie plot around this: Why is she upset with him in the end? Because he read her private journal
The answer to this question is:
The movie starts with Ajay (Ajay Devgan) telling his son that he should make his move on a girl he likes. The son tells him that if he can go woo another older lady, he will tell the girl he likes about his feelings. Ajay goes to the woman and starts telling her a story. Gradually, everyone around them starts listening and the scene goes to a flashback 25 years before. A younger Ajay is on a cruise with four of his friends. Nikhil (Sumeet Raghavan) and Reena (Divya Dutta), an unhappily married couple whilst Jeetu (Karan Khanna) and Natasha (Isha Sharvani) are a happily unmarried couple. On the cruise, Ajay meets Piya (Kajol) at the ship's bar and falls in love with her.While he is intoxicated, he buys drinks for everyone at the bar. Then there is a song, then Ajay blacks out. In the morning, Piya goes to deliver the bill to Bar guy and Ajay says he is still in love with her. Now Ajay is head over heels in love with Piya, but she won't accept him. He wants her by hook or by crook, even peeking into private journal, so he dances his way into her heart by learning that she has always wanted to learn how to dance. He takes lessons from his friend, and gives Piya lessons. The two finally fall in love. But then later, Piya finds out that he looked in her private journal and she yells at him. He leaves, but leaves her his number in case she changes her mind.While at their new home, at an early hour in the morning, Ajay calls his friends to come to his house. While driving there, we see how Ajay has tried to win Piya back by getting her favourite dog (even though he hates them) and other things. When they go inside, they find Piya and Ajay, getting married. They are all surprised and delighted. Ajay and Piya love each other, and they soon start a wish list, which they write on their bedroom wall. The first wish is to go on a cruise on their 25th anniversary. But after a few months, Piya goes out for shopping, but forgets everything, including where she lives. When she is screaming for help in the middle of the road...