Board Thread:General Discussion/@comment-29197815-20160915083709/@comment-5956954-20160915100357

You have the entire chronology of the story wrong. He was killed as Asriel because the humans attacked him when his SOUL was fused with Chara's, but he came back as Flowey who was soulless and could not feel love (example being Toriel) and, therefore, contemplated suicide until he found out he could reset and experiment with the world.