In Our Fourth Year Together, I Realized I Didn’t Love Him

I’m a Sucker for the Groveling-after-the-breakup Trope. I Just Love Watching Them Win Their Exes Back

The Heroine Pursues the Male Lead, Then He Panics When She Says She’s Giving Up!!

The male lead is the spoiled, haughty type. The female lead pursues him at first, then stops, and he panics so badly he doesn’t know what to do.

The Heroine Pursues the Hero at First, but He Keeps Rejecting Her Until She Gets Fed Up

She decides to stop pursuing him, then he desperately tries to win her back, but without making the story angsty. Or the hero is a playboy and the heroine likes him. At first he keeps fooling around, but when he realizes he's fallen for her, he reforms and starts behaving himself. Then the heroine brings up all his past mistakes.

Any Tragedies That Are Heartbreaking from Beginning to End?

It can become sweet in the end.