Don't take this as an attack. I find it quite funny. But yes, I just completed the Mara quest line and I'm wearing the Amulet of Mara. But, the women that you are supposed to be able to marry are not giving me the option to marry. But I've had two, yes, not one but two males comment on the amulet and I had the dialogue option for marriage with them. One is Mercurrio (SP?) a companion mage trainee who you can pay to follow you around and the other is a High Elf/Dunmer (hard to tell them apart since the look the same) is in Maven Black-Briars' Meadery in Riften.
Am I missing something?
The answers u seek are in this older thread, but read thru it fully, for better guidance.
How to get anybody to marry you-Including Lydia....
http://www.gamesas.com/index.php?/topic/1268837-how-to-marry-any-character-including-lydia/