That meddlesome SFL

I want a drama or lakorn where fl loves ml and ml also kind of started liking fl but then his ex gf or any sfl comes and ml goes to sfl ... hurting fl ... 

Soon the ml realises what he lost and tries to get fl back who has moved on

Ex-MY NAME IS SAM SOON

TAIWANSES DRAMA JUST YOU.

for worst case it can be husband wife and cheating drama also where non loving husband goes to sfl ... but then when wife move on then he regrests and tries to win her back...