By Susan Knox BBC Strictly Come Dancing stars Nadiya Bychkova and Kai Widdrington looked more loved-up than ever on an exciting day out, showing everyone they’re still going strong while on the Strictly Live! tour. They love birds been together since January last year and it seems as though things between them are going from strength-to-strength. Taking to Instagram on Tuesday, Nadiya, 34, posted some adorable couple photos on Instagram. One snap saw the pair pose together in a lift as Kai planted a kiss on Nadiya’s cheek while wrapping his arm around her waist. In the sweet snap, Ukrainian pr…