When you look back in your memories, deep inside somewhere, you knew of a person which started off from a stranger who you never thought of you would know and slowly with time as judge, you became friends or even good friends with.
As you got closer, you might think this person well but in fact you don't. That very stranger that became your friend, you slowly get repulsed and irritated with that friend of yours, and slowly you find that you unconsciously reject your friend that reluctantly tries to amend, but no, you don't ease up. You badger that friend even more, every word you deny and every action you brush away. Then you find the distance slowly enlarging, there's this barrier that momentarily formed after your constant signs of avoidance, then uncomfortness kicks in, the you find the friendship fades away. And slowly distant. Eventually disappear.