Love is a Crazy Thing 2005 on netflix

Jeon Mi-sun stars as Au-jin, a bored housewife living in Busan. Her husband does very little to help raise their two children, So Au-jin works a number of part time jobs to make ends meet. Working in a call center, the conversations she has with a mysterious man are the only things in life that seem to make her happy. When she is encouraged to get a job as a hostess in a bar, Au-jin meets Min Su, and can finally open her heart.