1. 16 Shades of Blue
She asked 16 girls to be bridesmaids. In the year and a half between the engagement and wedding, all but 6 dropped out (3 were her sisters). She wanted 16 separate shades of blue and 16 different styles of dresses for each bridesmaid then threw a fit when the store didn’t have that many options.
She demanded everyone pay for a week-long bachelorette party in Vegas (including her share) and then got mad when some opted out (I was a single mom/college student at the time). Her parents gave her a $20,000 budget and she ended up spending $100k and demanding they pay for it- they took out a loan they are still paying off.
She wanted everyone to have the same hair shade so she asked the two blonde bridesmaids to dye their hair (they declined). She paid for nothing for the bridesmaids (traditionally the brides pay for something- the hair/makeup or the dress) but demanded we purchase specific shoes, jewelry, dress, etc plus hair and makeup.
We paid for the entire weekend stay at the hotel she was getting married. We were all told that the costs for the wedding, not including a gift, would be well over $2k per bridesmaid. This was mostly amongst college-age women in poor/middle-class areas. She also had three separate engagement parties/bridal showers.
The final straw for me was when she demanded to see my toast a month prior so she could edit it. She ended up rewriting it totally.
I skipped the wedding totally and ended our friendship. They did end up getting married and 6+ years later he seems absolutely miserable.