"Then cut it off" you don't say that with a straight face! Maybe the only way to heal it is by using holy magic?? Did he forget Eugene can use holy magic?? I mean I forgot too but you can't just casually say cut it off
I think the main part was that Eugene could heal but only a little bit, which is why he felt relieved when being held. Not as in like he could full on heal injuries ╮( ̄▽ ̄)╭
"let's not argue outside and embarrass me" excuse you? Why make it sounds like your the victim here