Any where the female lead has the choice to be with the male lead or someone else, and chooses the someone else? At that point that, she realizes she's in love with the male lead and then has to break it off with the other person and then tries to get back with the male lead again. They end up together in the end.

She could have dated the male lead at first, but then breaks it off with him like in Bitou Lollipop.

She could just be best friends with the guy and be aware of his feelings, but choose the other guy anyway because she thinks he's the better choice. If they are friends, this causes a rift in their friendship.

I'd love if when she tries to get back with him, she has to deal with the fact that he's with someone else because he's trying to move on.

The male lead is hurt, and the female lead is filled with guilt over her decision.

Just some different scenarios I wouldn't mind seeing.