Pia does not seem to know the meaning of the word love. First and foremost you cannot force somebody to love you. You can force them to part with their wealth by threatening them. But love now that is a a totally different thing all together. In fact by forcing a person to love you you can only evoke the opposite reaction-hate.
Moreover if you love a person you would want his happiness first. In fact your happiness would lie in his happiness. Here she knows very clearly that Jai does not love her and loves Bani instead. Yet she is bent upon coming between them. How thick skinned and pig headed one can be?
She is only making a greater fool of herself by hanging around where she is not wanted.