Board Thread:Wiki Discussion/@comment-25958552-20160731111602/@comment-25648422-20160731135110

Well yes, Asriel reincarnated as Flowey but during the time he was Flowey, he is soulless and incapable of feeling any other emotion but coldness, mercilessness, and bitterness.

As for your next question, let's try to put it this way. It is unknown what Chara's background story was in the surface. Who knows? Chara was a good person but mistreated by others or Chara was a bad person who enjoyed hurting others but then again, those are merely assumptions. The implication that Chara's life on the surface wasn't a good one is her hatred for humanity. Additionally, since she never told Asriel, or anyone in particular, the reason for such hatred, this leaves us to ponder how Chara's life has been on the surface. The game only implies that it wasn't a great one. That's for sure.

Was Chara good before she fell down to the Underground? I have no idea. We don't know what Chara's personality was on the surface except for the fact that she is hateful towards humanity.

Still, it's nice of you to ask this question.