Can a Childhood Friend Really Lose to Someone Who Shows Up Later?

Childhood Sweethearts Always Lose to Love at First Sight. Any Novels Like That?

The Childhood Sweetheart Gets Abandoned, the Male Lead Stays by Her Side, and the Childhood Friend Can't Compete With the Newcomer

Two childhood friends stayed by their childhood sweetheart's side for over ten years, but in the end, they were distracted by other women. When the childhood sweetheart was in danger while the two men were protecting someone else, a new man came along and protected her instead. In the end, she falls out of love with the two childhood friends.