Really?why not?

Really?why not? really?WHY NOT JUST BE YOUSELF什么意思 Why not buy the coat?It’s really _. Why not buy the coat?It is really ( ). Not really. Not really . Not really 请翻译：If time is really like,why not go back.If life is really like,why i do not wake up in time. Do not know why.I am really afraid of losing you. maybe,possibly,if you really work for it why not?准确一点! why not talk to me now i am waiting you!Are you in line really? really?why do you writing to me it's not true .isn't it 急 Why bother asking if you're not really interested?为什么asking要加ing why not why not Why Not why not Why or why not?