Mx. Blooky is right, Asriel. Yes, it hurts to see someone you love leave, but you have to acknowledge that it's life, and you just have to be happy that they're finally on the right path. Also, just because someone's leaving doesn't mean they won't come back. It's not a "goodbye, forever, I will never, ever, EVER see you again!"- Chara's your family, and after everything you and Chara have been through, they wouldn't just forget all that and cut you out of their life, right?