How do you say

It’s been three months since I saw him, and he looks very thin.

..in Chinese?

我们已经三个月没见了,他看起来瘦了很多。

wǒ men yǐ jīng sān gè yuè méi jiàn le , tā kàn qǐ lái shòu le hěn duō 。

How do you say "It’s been a while, I hope we can meet again soon." in Chinese?