Why people are so attached to the virtual world?

Couple weeks ago, a “friend” of mine met me in a dungeon.  And the conversation was went like this:

H             : Hi…

L              : Hi, long time no c man…

H             : How r u?

L              : Fine man, how bout u?

H             : So so… hey btw, do u have a pistol for lv 44?

L              : Yeah, the one I’m using is lv 44.  It’s unique ^^.

H             : Aah, it’s shining!  Is it +5 or +6?

L              : It’s just +5.

H             : Can I borrow it?  I just need another pistol to kill that captain more quickly.

L              : Oh, sure.

And there goes the transaction with my “friend”.  And “he” went to kill the mini boss of that area… if what ‘he’ said was true,… which I doubt.  Because: half an hour later, the real friend of mine login, and whisp me telling me that his older account has been hacked (or keylogged, whatever the terms is), and warn me about it and also not to trust ‘him’.  And it was too late.  OMG, I’ve been hacked.  I repeteadly say to myself that I should have noticed it from the beginning.  Because ‘he’ spoke in English, while usually, we rather use our mother language.  But since we play in International se