That’s hilarious — if a bit wordy

“He makes me laugh quite a bit, which is one of the reasons why I like working with him.”

You can tell me the reason — or you can tell me why.

But you never need to tell me the reason why.

Eliminating one word or the other may, over the course of your lifetime, save you a cumulative 14 or 15 seconds. Perhaps you could spend it laughing.