@ abhaylove pia - when two actors are friendly, young & even little immature, they can say silly things about each other & it can hurt either of them .. its understandable.. viv always craved for suku's attention & wanted suku to care for him when he was sick.. if this is what you mean than they were more than friends for sure.. he played guitar for her, she is a dog lover , so he too shows interest (is it so )..
i think suku has a bf as she has mentioned him but viv's relationship with biz is not a natural one.. if he says that suku is different , it sn't a bad word