Lydia Bright's sister Romana celebrated her 18th birthday this week, and James Argent was among the friends and family who sent celebratory messages, gushing over his "little sis" on his Instagram story.The former TOWIE star, 33, who dated Lydia, 30, for eight years, said he was "so proud of" Romana Lucia on her special day, posting a selection of photos of the two of them.