Main Leads relationship

1st 10 eps :: hate zone
2nd 10eps:: friend and love without telling zone
3rd 10eps :: direct love zone
4rd 10eps::their family issue and regular life zone

Important eps:
22 first kiss,
24 dinner scene
26 I don't deserve you  scene
29 spilt up finalize
31 final patch
35 (main leads talking about future )