Some people only pay attention to the appearance of the relationship when it is broken but not pay attention to the reason. Especially when you change your attitude to them, they don’t even realize that the reason starts from them.
They realize that you are not taking care of them anymore, but not realize that it is themselves who do not cherish what you do for them. After all, they just want to receive but not giving.
They realize that you are not helping them anymore but not realize that it is they who did not appreciate your help in the past.
They realize that you are not listening to them or share things with them anymore, but not realize that it is they who never listen to you or understand your emotions.