Why should you care? Accept it and move on.
Then just accept it and move on.
Possibly the same reason why you don't talk to him.
Sometimes, our efforts are applied in a manner not conducive for the result we seek. Perhaps, you may need to rethink your strategy and incorporate a new system in order to achieve your desired result...an interaction.
Killing yourself, is the absolute wrong approach...which in fact will scare him further. Maybe, just a simple exploration...on the light side...to open things up. He may be the type that shies away from depth or drama.
Subtle and soft should be your business model for your relations/interactions.
He doesn't like you. You didn't offer sex fast enough
Put sex on the table and he won't stop talking
Girls that take a relationship too slowly are bound to get left behind
Could be lot's of reasons!