I am never afraid to voice out my opinions, because I'm not expecting anything in return. Not your acceptance, nor your rejection. I'm indifferent to your response, as what's important is I say what I have in my mind.
But I just cannot give proposal, for I am very afraid of being rejected.
I can't take upon chance of putting hopes for acceptance, that'll just be too much for me to bear. I experienced too many rejections, I'd rather try to deter future ones from happening. Acceptance of negativity is easier to handle than uncertain occurence of happiness.