I always have known that people don’t change unless they truly, firmly want to do so, because of their intrinsic motivation.
Nothing external can change a person.
I always found it silly when people get into relationships and try to change each other and in my previous relationship I accepted my boyfriend, the way he was without ever trying to change anything about him.
However, because I am have always known that people don’t change , I was always pickier about who I get close with.