Lulu 1. Nothing! 2. 1. Seriously. She can decide what she was doing earlier was wrong and decide to do something different now, but. There is no guilt, even if she was going to eat you. WHATEVER LULU CHANGED HER MIND LETS BE FRIENDS!
Emil 1. General things. That he's not doing enough in games, that he doesn't go to games enough, that's he's not helping as much as he could, that maybe he's not trustworthy, that even with all the hunting/fishing he does Orion's food situation still sucks and clearly this is somehow his fault, that he wants to know people but is too timid to really be social and it's his own fault he's lonely, ect. Catholic guilt here. 2. 7-8. Depending. If things start going better it will lower, things going worse raises it.
Ratatosk 1. NOTHING. Mmmmmmmaybe. Marta. A little bit, in his memories, but he covers that up by being mad. 2. 2. Sliiiiiiiightly better than Lulu, he might regret something if it made someone he liked mad at him, but not for actual moral reasons. And even that he mostly covers up with anger.