Any shows where the FL works for the ML's enemies/rivals and she is sent undercover to spy on him and such. They fall for each other, but then the ML finds out she's spying on him and feels betrayed.

My GF Is An Agent  : movie

look u can use personalized list and choose  comedy movies and u can find many like Mr n Mrs Smith theme 

 Lustdrama:

My GF Is An Agent  : movie

look u can use personalized list and choose  comedy movies and u can find many like Mr n Mrs Smith theme 

Looking more for corporate spying. Like she works for a rival company.