Mary-Kate Olsen got real bourgie this month with her fiancé Olivier Sarkozy at the Hamptons. She not only flaunted the huge rock of her engagement ring, but she also showed off her new preppy look on a horse in Hampton Classic Horse Show. Looks like the ‘Full House’ twin is shifting from her boho chic to ultra preppy look to fit into her husband-to-be banker’s lifestyle.

But not everything is going smoothly for Mary-Kate Olsen, who competed in the 39th Annual Hampton Classic Horse Show, according to TMZ. Her horse called Uniek refused to jump during one of the events, “leaving her with a big fat zero on the score sheet”.

Good thing the ‘Full House’ twin had another horse just sitting around. She got on Swagger (yes, that’s the name of her spare horse) and finished off her routine.

Looks like Mary-Kate Olsen, 28, is getting a makeover in preparation for her wedding to the financier Olivier Sarkozy, 45. Instead of getting all boho-ed up for the Paddle & Party for Pink benefit in Long Island, she got dressed in clothes right out of the J-Crew catalogue.

She looked happy though, snuggling up to Olivier Sarkozy and keeping him in her arms throughout the evening. Not even the warm, humid summer weather could take them apart!

According to the Us Magazine, Olivier Sarkozy raised money for the Breast Cancer Research Foundation.

Now Mary-Kate Olsen rubs shoulders with Martha Stewart and the like. How far she has come from her boho days!

Olivier Sarkozy (yes, the brother of the ex French president) proposed to the Olsen twin this past February with “a massive engagement ring after two years of dating”, according to Us Magazine.