Katie started at Edmonton Ambulance Station in London and would soon come across Sam

Went on their first date to Creams, a dessert bar in Walthamstow and then Sam walked Katie 45min home so they could keep talking.

Sam asked Katie to officially be his girlfriend

Katie and Sam moved in together (and with Callum, Harry & Sim) at Marie Lloyd Gardens

Sam's first visit to Australia to meet the family

Katie and Sam move into their first flat on their own at Haringey Park in Crouch End

Sam asked Katie to marry him on La Cinta beach in Sardinia

Sam and Katie bid farewell to the UK

Sam and Katie settled in Perth