Here's a problem for you. I married Aela then divorced her cause she was buggy. Divorced her using the completequest breakup ID. Then I used resetquest relationshipmarriage, setstage relationship 10, addfac and setrelationshiprank, all the stuff you're supposed to do. Had Lydia selected during the right codes, put the amulet on, and talked to her. She notices that I have the amulet and asks why I'm not taken, but I don't get a dialogue option for marriage. Even tried talking to the priest guy. What gives, man? Did she see me taking my last wife out to the woodshed or something? Edit: also just tried it with Mjoll, she does the same thing. Mentions the amulet, but doesn't give me a dialogue option to marry. And yes, I found grimsever for her.