The Fragile Vessels by Sh. Muhammad Al Jibaly

Quote :

Rights and Obligations between the Spouses in Islam.
Covers the obligations of the two spouses, the wife's rights, and the husband's rights. Contains biographies of the Mothers of the Believers, paints very realistic pictures from the life of the Prophet ( ) with his wives, and presents a complete discussion of the hadeeth of Umm Zar'.

A very good book. Essential to have before performing nikkah and while you are at it, please listen to these wonderful lectures (will keep you busy a while , as it is about 15 cds ) :
The Fiqh of Love by Yassir Birjas.

You can purchase them from:  http://Dar-us-Salam.com

If you really cannot afford them, then you can listen to them from here:
 http://www.hoor-al-ayn.com/lectures/yasir-birjas/   (and buy them when you are able to Inshallah).

and you can read notes on the Fiqh of Love here :
http://forums.almaghrib.org/forumdisplay.php?f=46