I wanted to breed some Villiger to trade with them. But because everything went wrong somehow, I killed all but three. Now she and her children are mad at me and only give me overpriced prices. Will they ever forgive me or will they stay that way?
They stay that way
So in all honesty, why are you killing Villager too?
They're really friendly.
When growing, you have to throw out two villagers either 3 loaves of bread or 9 potatoes, carrots, beetroot. If it doesn't work right away, you have to give them more. In addition, there must be a free bed in the village that has not yet been occupied by any villager. You also need patience. Sometimes it takes a while.
The villagers will be mad at you now