kk so i tried not doing anything perverted or bad to him unless forced while exploring and the evil bar is still filling . it seems like the game is forcing it to fill. Idk if this is a bug or if i am doing something wrong :(
I can't be certain either, but I am sure the game works as intended, as neither I nor anyone else has noticed such an issue. Bonding is the section you need. In Explore there are sometimes decisions that can fill up the Evil and Good bar. Being more nice and a tad less perverted to him in that area is the right option for the Good bar.
You can name what part/choice the problem is, if you have still trouble.