Arranged marriages makes the men happy, but the women are often miserable. That's why as nations become more civilized, they often ban such practices. Women are taken from them homes at very young age, leaving their brothers and parents and friends, and placed in the husbands family and his extended family, and are often the slave to the new family.
A good and very disheartening story is a film i once watched called Nu Shu, which is a secret language the women of rural China created for themselves (they weren't allowed to learn normal Chinese). This language was handed down generation by generation, and the men never knew it existed, and if they did, they were never able to 'crack' the language. It was only in the 1950s that the Chinese government even acknowledged its existence. The language is sung instead of read, and it's characters were often placed in embroidery (which the men just thought were just fancy designs, but they often told poems and stories).
Anyways, a lot of the poems tell how sad the women are to be in arranged marriages. In arranged marriages, there's no equality, one actually 'buys' the wife, so he owns her. Abuse is normal, and rarely if there is love.