how can her hubby be da blckmailer cuz da blackmailer thretened her by saying tht if u support shree then ur husband will not be alive.. n yea they have told as brfore tht kangna was married to anand madhus husband but then hari n kangna used to luv each other alot so she ran away wiv hari...
Well Actually Anant knows that Madhu's biggest weakness he himself. So he knows that if Madhu comes to know that Anant's life is even in slightest danger then Madhu will do anything to save him. He doesnt really need to hurt himself, just the idea of hurting himself is enough to black-mail Madhu.