You Are My Obsession

They have been in love with each other since childhood, but they do not know that their feelings are mutual. Only after Lera moves to another city does Vadim realize how dear she is to him and that he has lost her forever. Her unexpected return takes him by surprise. Why did she decide to come back if she is already engaged to someone else? Will he be able to remain a good friend to her and will he have the strength to hide his obsession?