Why is it that 26-year-old Mary-Kate Olsen’s relationship with 42-year-old Olivier Sarkozy gives us the willies?

Could it be their 16-year age difference, or the fact that when they’re together they look like a dad taking his troll doll-costumed daughter trick-or-treating?

Olsen can’t be after his money, since she is reportedly worth zillions herself.  And it sure can’t be due to his looks, which are, well, basically like that of the middle-aged brother of the former president of France.

Good gravy, could it just be good old-fashioned love? Rumor has it that they are engaged to be married, something that Olsen’s reps have denied to the Huffington Post. As they say in the South, bless her heart.