Sometimes we put too much time and energy into people who do not appreciate or reciprocate. Some people push and push until we have to give in and acknowledge we can love that person but we cannot continue to revolve our world Round him/her.
I'm only responsible for what I say, not for what you understand. Although as an author I am responsible for making readers understand--a reader who doesn't understand is an unhappy reader. (And there is some value to leaving some questions unanswered.