I watched Backstreet Rookie and I really enjoyed it. I think she plays her part well and it was fun seeing her persistence and how he began to fall in love with her due to this. 

I've seen It's Okay not to be Okay, Itaewon Class, Hotel del Luna - thought they were great to watch. 

I hope to find a drama that's within the last 6 years. Can be from any country. 

CDRAMAS

General's Lady (cdrama)- he forgets her, then he chases her away, then he divorces her. But still not in a horrible way - in a I'm protecting you way stay away. BUt she keeps insisting. 

A girl like me (cdrama) - does she pursue him? Mayb at the start

My Sassy Princess- she really goes for it. Stalks him, looks after him etc etc

Rebel: Thief Who Stole the People

 Ever Nigth ( part 1)

In both cases she loves him, he is enamored with someone else.