Good luck to you !

谢谢你亲爱的
Thank you my darling
你也一样
You like
The same to you

要看上下文。
如果是你要去一场考试，或去面试，男朋友跟你说good luck时，最简单的是说“Thank you.”你要是对这场试没什么信心的话，就说“Thanks, I really need it!" 要是想俏皮一点，就可以说 "oh, good skills and good luck, now I have both!" （实力和好运，我现在都有啦！）

如果平常一样说Good luck to you, 就可以说 “Thanks, you too.”
但好象平常说good luck 会比较奇怪。

thanks darling, wait for my good news.
亲爱的谢谢你，等我好消息吧

简单点就好了.

You too.

Thank you ,the same to you.

thank you
you too