She seems hopelessly in love with vishal.. but he's not what she expected..
Happens in teenage love.. when u fall in love with the idea of a person and then realise they are totally different.
That's why she agreed for the dance show and now she's followed him to BB.
His game was so much better with out her.
Vishal is not mature enough to handle a person like madhu.. another life another time may be.