Park Soo Jin and Yunho are BFFs?

A picture of actress/Sugar member Park Soo Jin with TVXQ's Yunho has been creating a lot of buzz. Park Soo Jin recently uploaded a picture onto her Twitter with the caption 'On the way to see the musical Goong (?). In the waiting room with Yunho~ Both of us are looking to the left after some shuffling... Facing one direction... The hardworking image of my close friend shocked me.' The pair have been friends since before their debuts, and have both starred in J.Rich's music video "Goodbye My Love". Netizens commented,

'I can see your close friendship' 'Even though you two are close friends, being this close... could it be...?' 'I have a feeling of being hugged by Yunho from behind' 'You two look good together'