Sorry, I'm pretty new to the online community myself too.

You also mentioned books, right? I'd be interested to read some, can you recommend any?

I know this is oretty off topic, but like I said, I only got registered here like a month ago, so I probably can't give any significant advice to your friend, other than if he's non-exclusive like me, tell him not to fight against it, since it only makes things worse.