@bears dude, you are taking certain things too seriously. None of them are bad people. Sun-chan just got high off of jealousy and ruined his reputation... but he also regretted his action. And it was Sun and Pansy BOTH who manipulated the childhood friend and president into going against our MC...
Those 2 were actually the only innocent ones without counting the MC... they were manipulated into going against the MC and then tried to fix the problems he had... and Sun just had years of jealousy boiling over, so when he had a chance, he burst and then regretted it... but that horrible act wasn't the norm for him... in fact, that was outside the norm for him and after hurting his best friend, he's not likely to do it again.
You got to remember, these characters are supposed to be people... so they can do stupid acts and make mistakes and hurt people... not cause they are bad... but because humans can sometimes make mistakes.
And if you think about it, it was Pansy who exacerbated his problems for her own end... childhood friend and president were just manipulated by Sun and Pansy....
And reporter-chan is the same... she made a mistake that she regretted as well.
And frankly, our MC knows that they'd never try to hurt him again and he knows that that wasn't the usual them... and it's not the trauma with them that he really has an issue with, but the issue is, he himself doesn't feel like he contributes much.