Jamie Oliver penned a heartfelt tribute to his wife Jools on Saturday as he shared a loved-up photo of the couple on Instagram.The celebrity chef came over all romantic as he posed beside his wife of 20-years, with the pair looking happy and relaxed as they smiled for the camera.MORE: Jamie and Jools Oliver celebrate daughter Poppy's 19th birthday - see photosCaptioning the beautiful photo, Jamie penned: "Love this girl @joolsoliver she’s bonkers & cute but what the hell do I look like?....