Are you telling me who I am?

I met this guy not to long ago. He seemed like a cool person. He was sarcastic just like me, and he didn't take offense when I would have a playful attitude. The only thing was that when he was leaving he wanted to tell me about me. Who else would know me more than me?! He actually sat me down and said 'let me tell you about you' and i was like 'yes please do! i want to know about me from you, when we just met today'.

That was a total turn off, I hate when people try to tell me who I am. Yeah you can get a feel for a person when you just meet but you can't know the completely just like that.