Oooh I can contribute! This happened just last month. My cousin was supposed to get married in a Mormon temple to his fiance that he had converted. They were arguing the months leading up to the wedding because his fiance wanted to have a regular wedding ceremony and get sealed in the temple in between the ceremony and the reception. Her family isn't Mormon, and can't enter the temple, but since the church has removed the policy stating that US members have to wait a year to be sealed if the couple has a normal wedding she figured this wouldn't be a problem. My cousin is an a*s and likes to show off how much holier he is than everyone else so he said it was a deal breaker because he "didn't want a regular ceremony to take away from the sacredness of the sealing".
So a month leading up to the wedding and his fiance is obviously sad, the joy of getting married is overshadowed by the fact that her dad can't walk her down the aisle. But my cousin said her "sadness now is temporary and that her happiness and family would be eternal" so she tried to seem happy.
Day of the wedding comes and she is hugging her dad and mom trying to keep it together and she goes inside the temple. I don't know what happened inside because I'm not a temple recommend holder anymore (still technically a member but mentally out). 30 min into it and the bride comes running out the front doors in the ridiculous f*****g temple clothes and told her parents she didn't want to get married today and they took her to their hotel.
My cousin came out later in his regular wedding tux and was angry. Telling everyone that she didn't want to be married in a place her parents were allowed in. They tried working it out but she said she never wanted to go to the temple again (don't blame her that place is bizarro) and that she didn't actually believe in the religion but loved him so she tried.
My cousin is still moody and I'm still in touch with his fiance.She said she wouldn't be able to forgive herself if she left out her entire family for a ceremony that was really creepy to her. In her defense the wedding sealings they do are super sexist and have 0 to do with love.