Dear Sunitha,
Had I been in ur position, I would have taken my father into confidence and revealed the truth.....I would not have waited for blackmailing of my husband.......
My dear friend, tell me one thing, world is very small,if ur father comes to know about ur situation from anybody else what would happen then???
So if possible tell ur father the truth gradually and then if ur hubby is not willing to change, as Ramesh Bhai said, show him the way that goes away from u!!!!!!!
Life has so much to give u my dear.there is no need to take his beatings that too when he doesnt deserve to be a part of ur life.......be bold and dont underestimate ur father's strength......he will feel happy when u are relieved of ur tension.......
and who knows there is someone better waiting for u in the next turn of life......
DAYA KSHAMA KRIPA KARO SAI DEV!!!!!!!!