Re: Rights n duties of a wife
First off, rukhsati is NOT RECOGNIZED from an Islamic point of view... I would go as far as calling it a PAGAN custom! Once you are in legal marital contract (Nikah) you are legally wedded and no person can come between the couple unless they themselves wish to stay apart.
As for sex:
2:222 They ask you about women’s courses. Say, “It is an inconvenient condition. So keep away from intimacy during their courses. Once they are clear past it, you may approach your wives for intimate relations in the manner designed by Allah. Allah loves those who make amends and keep their minds and conduct clean.”
Forcing onself onto his wife is hardly a clean conduct.
Divorce and Force:
4:19 O You who have chosen to be graced with belief! It is not lawful for you to force women into marrying or holding on to them in marriage against their will. Pressuring women to remain in wedlock by threatening to take away the marital gift is forbidden. A wife could forfeit the right to the marital gift only if she has indulged in clear lewdness. You shall treat your wives nicely. Even if you dislike them, it may happen that Allah has placed much good in what you have failed to realize.
4:128 If a woman experiences ill-treatment from her husband or fears that he might turn away from her, there should be no hesitation in taking corrective action and resolving the matter between them amicably. Conciliation is best. Selfishness is ever present in human psyche. And if you take care to benefit each other and be mindful of Allah, verily Allah is ever Aware of all you do.
And the one thing I would like to bring up is:
65:1 O Prophet! When you men intend to divorce women, make sure that the waiting period is observed. Keep precise account of this interim. Be mindful of Allah, your Lord. Never expel them from THEIR homes, nor shall they themselves leave their homes unless they commit open immorality. These are, then, the limits imposed by Allah. And whoever crosses Allah's limits, he verily hurts his own ‘Self’. You know not that Allah may bring about thereafter a new situation (help create reconciliation).
So much for divorce by repeating something three times all at once...
As long as you are keeping the restrictions in mind, the details are left to you...