Hello, London! Taylor Swift and Travis Kelce enjoyed a cozy date night in London on Thursday, as they were photographed exiting Harold Pinter Theatre with British cinematographer and long-time collaborator of the singer, Rina Yang. Per photos obtained by Page Six, the couple was seen holding hands as they exited through a back door. Taylor Swift and Travis Kelce enjoyed a date night on Thursday. / SplashNews.com The couple was seen leaving a West End theater after watching “Romeo & Juliet.” / SplashNews.com For the outing, Swift wore a floral dress with a black coat.…