Subtle/cute love

Love triangle
one is a quiet cute guy who fears to be alone in the dark but "only" the childhood friend can comfort him
another is a popular classmate who got interested in the quiet guy
the childhood friend is supportive yet does not like him doing things with other ppl

basically rewriting her future and reverting away from the worst kind of nightmare, however, this is going to be a bumpy and slow ride (cau drama in the manhwa and the slow translation updates)