You know what I feel for you. You know very well, but you have to annoy not to accept it, but it doesn't matter as much as what you feel, and then you do as you feel.
You know how I feel about you. You know very well, but you pretend not to accept it. But it does not matter how you feel, then you do not feel like you are.
You know how I feel about you. You know but you pretend not to accept it. But it is not as important as what you do and you don't feel like you still feel.