Us Weekly reports that Elizabeth Olsen is engaged to her boyfriend, Boyd Holbrook. This just two weeks after big sister Mary Kate announced her engagement to a Sarkozy. Is it something in the water? Did the Olsen sisters cast the same love spell? Or is it a little sibling rivalry? Either way, it’s going to get so awkward when both Elizabeth and Mary Kate want to book the Plaza for their wedding on the same day and try to sabotage each other’s ceremonies like that movie Bride Wars.