Michel Houellebecq said this quote

“ Olga was nice, Olga was nice and loving, Olga loved him, he repeated to himself with a growing sadness as he also realised that nothing would ever happen between them again, life sometimes offers you a chance he thought, but when you are too cowardly or too indecisive to seize it life takes the cards away; there is a moment for doing things and entering a possible happiness, and this moment lasts a few days, a few weeks or even a few months, but it only happens once and one time only, and if you want to return to it later it's quite simply impossible. There's no more place for enthusiasm, belief and faith, and there remains just gentle resignation, a sad and reciprocal pity, the useless but correct sensation that something could have happened, that you just simply showed yourself unworthy of this gift you had been offered. ”