Ryan Thomas has shared an adorable new video of his fiancée Lucy Mecklenburgh and their three month old son Roman singing Happy Birthday as the former Coronation Street star turned 36 on Wednesday, 10 June.The TV personality posted the clip on his Instagram stories, where his 28 year old other half could be seen sitting on a plush grey couch while holding their little bundle of joy.Former TOWIE star Lucy, who could be seen wearing a white blouse with blue roses on it paired with some jeans,