I don't know what happened, but it would surprise me if it was actually something worth being called "a sin", or calling yourself "arrogant".
I don't know what happened, but anyway arrogant people wouldn't look back at what they have done and wouldn't want to better themselves next. So you're not an "arrogant bastard".
Also, friendships comes and goes. It hurt yes, but it's no reason to beat yourself up for it.
And yes you deserve the scouting, not because you're a good guy, but because you draw well! Being a good person make you deserving of a better treatment though, so start to treat yourself better, by stopping being so hard on yourself. :)
psychicpxl
You can't blame or self hate yourself. That's only going to lead to more unhappiness. It's best to just move on and accept what happened, and try to learn from it. Don't worry, your art deserves to be seen by others
PalmaDeColores
I was unscouted... I guess I'll just have to try harder next time. Thank you, now I can rebuild what I lost again and again.