My sister got married to NRI 2 yrs back(demanding huge dowry ).From day one we have been tortured by her in laws for more dowry ,money .They used to insult us so much .My sister beared him for 2 yrs , after marriage we came to know that he went through Roux en y hepatico jejunostomy ,surgery for bile ducts injury , he is a smoker,after 1 yr of her marriage ..we came to know by her that they didnt had physical relation and more over she was harassed by her husband for money .She didnt tell about his problem because my BIL proposed her before marriage and she fell under his trap , she convinced us for marriage (intially we didnt like the match) and as in laws are money mongers.she trusted him lot but ended up in mess and heart broken.from day one of marriage,He was not supposed to talk to her(no transparency) and with us .We tried lot in this 6 months to solve issue , my brother in law was never available and his parents or family never talked to us rather than they used to insult us by changing words like assasinating my sister's character .She is now in India with us, as her husband tried to divorce in US. MY question is , by hiding his problem , does it amount to cruelty ??Roux en y hepatico jejunostomy does it lead to impotency?how can she come out of this mess