
As someone who read the novel, I just wanna say I HATE this ML. I had to pause several times reading the novel. I personally this groveling arc was NOT enough. Son of a bitch

https://booktoki466.com/novel/8192603?stx=%EC%9B%94%EA%B4%91&book=%EC%99%84%EA%B2%B0%EC%86%8C%EC%84%A4
You have to use Google translate and it's not perfect

https://shanghaifantasy.com/moonlight-madness-chapter-1-2/
Here is a better translation

I know I KNOOOW she can’t help it blah blah blah, he apologized and what not but I still wanna know why he was such a dikhead in Korea ヽ(`Д´)ノ

Then read last chapters. He was forced by this organization of theirs to do missions he didn't want and they threatened him to hurt Irene if he didn't do what he was told. Bro was forced to go into a strange world, had no one but her but at the same time she was something others could use to blackmail him. People when being in danger, often distance themselves from their loved ones, they start to be cold, more irritated. Act like they don't care to not be more hurt. Of course it doesn't mean what he did was right but I think it explains a lot. Idk I think we need more of his background to understand him better.
Give us the fawking lesbians before I lose my shit and you my fist flying across your face