Ulrika Jonsson has revealed that she understands why Andrew Buchan may have strayed with his co-star Leila Farzad as she herself has had her own on-set flings. Affair: Broadchurch star Andrew, 44, is said to have walked out on wife Amy Nuttall and their two children, and moved in with co-star Leila, 40, after meeting the glamorous actress while working …