Heartlands (2002) on Netflix

Plot summary

Colin 'Col' Lawes keeps a news agency and throws darts for the Atletic Arms team in the evenings. One night he finds his wife Sandra with Geoff, the team captain and a police officer. Colin and Sandra argue, and she leaves him. The team has reached the finals of the league in Blackpool, but Geoff leaves Colin out and takes Sandra with him. Colin's friend Zippy tells him that doing nothing will leave him looking back with regret, so Colin sets off for Blackpool to tell Sandra he loves her, leaving his shop in the care of his customers. At a motorway cafe, a waitress ignores his attempts at conversation.