As far as aI know, people did not get married for love in ancient times. In modern times, people choose their partners on basis of love.

Sub-topics:

• what was marriage for? was its function to make alliances among families for pragmatic reason, even in lower social classes?
• Was it common to have a wife for aforementioned reasons and concubines for sex and love/romantic relationship at the same time? (and vice versa from the woman's standpoint)
• When did this change and why?