Right, lol, I know this thread has gone off track somewhat...

But I'm gonna respond to the OP anyway.
I have a good friend who's an ENTP, and so I'll write this based on the differences/similarities between us. I've only known her about a year (although we got to know each other super-fast so it seems like much longer), so I can't relate from years of shared experiences, but still.
I can talk to her about anything, and she can totally follow my jumps in thought processes - she 'gets' me, like very few other people do, and it is frankly just a relief to be able to let loose and not have to hide behind normalcy.
We make each other laugh so much, in ways that would have other people shaking their heads and walking away slooowly. We were incredibly disruptive when we had a class together - I don't think we ever completely shut up.
She's more responsible and in some ways 'mature' than I am... of course that may have a bit to do with our respective circumstances. She enjoys argument and playing devils advocate... she doesn't just accept things from people, even authority figures. I tend to be fairly passive and although I might disagree with someone's opinions, I usually just let things pass.
She's nice, and very charming, but she's very much herself. I'm more varied, depending on who I'm around.
And yes, he can be much crueller than me and tends to be able to justify his own behaviour more easily, he can easily shake people off who attach to him if he doesn't like them or find them interesting, whilst I tend to feel a sorta duty to stick with them and work with them and stuff, regardless of whether I like them much.
I wasn't sure I agreed with ENFPs being 'cold and cruel' at times, as mentioned previously, but yes, in this way I suppose we are. If I feel threatened (or scared, or irritated, etc), I quite easily shut someone out and ignore them until they go away.
I'm not so sure how my friend would deal with it, though.
What's all this, "ENFPs strive to be liked", business?
Having people like me has never been a goal, or pursuit of mine. Although I do like/enjoy quality attention from a select few, I cannot stand being center stage, or receiving unwanted attention.
Now, see, can I say that I do very much want to be liked, but at the same time I hate being center stage and getting unwanted attention?
Actually, nothing makes me feel more wonderful than when someone turns to me and delivers a compliment like, 'Wow, you're actually really ____". Like they weren't expecting it. That's nice.
But really, I just want to recieve the same sort of interest and attention from people that I give to them.
Is meeting another ENP in real life as explosive and electrifying for you guys as it invariably has been for me?
There's definitely an ease and a freedom with which two ENPs can just let go and bounce off each other... which is really, really wonderful because we can do this with so very few others and have to hold ourselves back.