He rejected his love confesion because he knew that Jaheon was only following what he was taugh and that his feelings are not real. Jaheon was already feeling confused and depressed because all the presion he has as a failed sacrifice and his own issues. He ran off the woods by own decision. Glasses didn't want him in the house but he didn't told him to leave either. While it's true he didn't went to save him, why would he if that would mean bringing back to the house because Jaheon has not other place to go and Glasses wanted him to live under the sun and not like some sacrifice (he saved him once already), and he considers his duty as God more important than anything else, it was Jerk Mugo who went after him. Glasses knew that Jerk Mugo would interviene even if he disapproved that and is disgusted by the other Mugos using Jaheon in their sexual acts and sex in general. The hypocrite.
It's ok to hate him, I'm not a fan of him being so loyal to the family, but that's the FUN part, still not spread misinformation?
You just typed out all that shit for no reason. His words compelled him to leave. He didn’t have to accept the confession. He didnt have to chase his ass out either. Mugo knew he sent him away. He’s an ass plan and simple and a hypocrite and he needs to keep his sticky cake, loving fingers off of him.

I saw people argue who the better Mugo was like aren't they all the same person. I theorise that trauma caused a split personality but the dominant one is clearly the regular Mugo. Am I tripping?