Well，decided to break up by sending a text to him. It was a message which I typed and deleted, and typed again before sending.
He had been not answering the phone calls since the day he requested for a break. Till then, I decided to accept a 'break' as in a short break for each other to evaluate.. At the end, no more contacts after that.

I somehow clinging on all those guessing games. Such as' How could he lets go so easily?', ' Why he never answer phone calls?", " He ...".

All these guessing games had me getting tired and having worse feelings.