Article continues below advertisementPrince William and Kate Middleton have fans gushing after a throwback video of Kate attending William's 2008 RAF graduation ceremony resurfaced on social media.In the thirty-second video clip, Kate, 43, was seen slipping into the graduation ceremony, finding her seat and subtly scanning the crowd for William, 43. The video then cut to William catching sight of her - gazing down the row at his future bride as she shyly looked back before turning away.