Will you ever attaches yourself to someone?
If you do, than you know the pain of ignorance. The worst thing for a man is absolutely the ignorance. A man can bear anything but what he cannot bear is the ignorance.
We are the true social animals, we cannot survive alone and this is in our genes. That’s why whenever some fellow human especially the one with whom our heart attaches, ignores us, we feel a deep sense of emptiness in our heart. We feel that the life is no more same for us, we feel that the universe is in a sad mode.
But sometimes this is a blessing in disguise. Read the life of every artist, they always feels this horrible feeling of ignorance or rejection from their loved ones.
Now it is up to you, to use this feeling as a sadness in life or as a motivation.