
WHY DO I FEEL BAD FOR HIM SOMEONE STOP ME THIS IS UNHEALTHY

Not really. Opposite actually since it's more unhealthy to deny someone being a human being that's capable of changing/repenting (tho the entire comments section here seems to disagree, for real of meme's sake).
He did wrong and finally comes around to realizing just how badly wrong he was AND feels remorse. Having sympathy for him just shows you have an actually healthy dose of sympathy in your heart and can understand both sides of the coin. Plus, it shows how well of a job the writer did to make this actually realistic (and not just in a one-sided way).
Either way, the author did a good job having this play out so well for both the characters ending up getting the reader's sympathy. It's nice to see both sides get their attention in this, not just the poor girl that got hurt but also the guy who realizes how badly he behaved and regretting his actions.
I really hope they both talk about this at some point tho. Would be a shame to just have this fade out and each of them have a seperate closure-type arc. I'd love for this to not go that immature way but instead have them behave like adults. Which is rare in shoujo stories, but I can still hope, right? (〜 ̄△ ̄)〜

can someone spoil me if someone from the guild masterd would die? JSJJDJS IM ALREADY ATTACHED TO THEM ALL

Oh did that get clarified in the later chapters? Im sorry if im am inncorrect about this but when they were talking about the Guardian angel thingie i think the preist said that they were a female it said that in the T/N i think if i remember. sorry if im wrong (〜 ̄△ ̄)〜 (this might sound rude depends on they way you read it but i promise im just asking a genuine question)

I ended up putting in the work to double check and I was right, they use male pronouns for the priest.
Chapter 22:
"He became younger using his ability."
"He's even more of a nasty thief than me."
Chapter 26:
"He's always been like that."
"This is the only way he's ever known...."
I also went ahead and checked the novel, which has A LOT of pronoun usage involving him, so have fun with this wall of text. I could've just given one or two examples, but why not provide almost every instance the word "he" was said when referring to him amirite?
(quotes followed by a space and another set of quotes means it's a line said directly by another character, instead of narration or Gong Ja's thoughts)
Chapter 20
"The young man who was in charge of making sure religious fights didn't occur in this place where people from all over the tower were gathered was famous for speaking formally to everyone."
"I heard he even spoke politely to terrorists he questioned."
"Heretic Questioner turned his gaze."
Chapter 22
"The Heretic Questioner took off his cap. He politely bowed to the people looking at him."
"Looking at his disappearance blankly, the hunters realized belatedly."
Chapter 25
"He ran over to me. Because he was so short, he seemed like a tiny puppy."
"He was all smiles looking up at me."
"He quietly muttered to himself."
"His eyes weren't laughing"
"The Heretic Huestioner tilted his head, still smiling."
"The Heretic Questioner gathered his hands."
"He smiled brightly and requested for help."
"The Heretic Questioner smiled exuberantly and gathered his two hands."
"In the middle of it, Heretic Questioner muttered, moving his hands rapidly."
"The Heretic Questioner spread his arms apart, saying, "Here we go." "
Chapter 28.1
"He tilted his head, and exclaimed with an 'aha!' He seemed to have understood the situation now."
"The Heretic Questioner raised his hands."
"He had used aura to carve letters in the marble."
"He smiled warmly."
"Heretic Questioner fixed his hat."
Chapter 29
"Heretic Questioner stroked his chin"
"Heretic Questioner adjusted his cap. And he shook off his clothes."
"The Heretic Questioner gathered his hands."
"White light surrounded his hands."
"In his weaponless bare hand, there was pure white Aura."
"The Heretic Questioner pulled out his handkerchief."
"His face was red with the blood of the hunters who died. He lazily wiped his face."
"He threw his handkerchief to the ground."
"Like it wasn't enough, he pulled out a handkerchief with his right hand."
"He was holding his arm to stop the bleeding. Surprisingly, his face didn't seem pained."
" "He was always like that." 'He' was the Heretic Questioner."
" "He completely killed everyone who fought because of religion. That's the only way he knows..." "
"I thought he had peacefully settled things with everyone, because that's that the media said"
"The Heretic Questioner fixed his cap with his left hand."
I NEED A HADES IN MY LIFE